ungrounded

en-adj

ungrounded (comparative more ungrounded, superlative most ungrounded)

more ungrounded (comparative)
most ungrounded (superlative)

From Middle English ungroundid, ungronded, ungrundid, ungrounded; equivalent to un- + grounded.

Unlike coaxial cable where the outer conductor is grounded, twisted pair is usually ungrounded.

If the charge is allowed to build, the core will discharge into the hull of a ship. All ungrounded crew members are fried to a crisp, all electronic system are burned out, and metal bulkheads may be melted and fused together.

2008, BioWare, Mass Effect, Redwood City: Electronic Arts, →ISBN, →OCLC, PC, scene: FTL Drive: Drive Charge Codex entry:

(electricity, electronics) Not connected to ground potential


spherical aberration

en-noun

spherical aberration (plural spherical aberrations)

/ˈsfɪɹ.ɪk.l̩ ˌæb.əˈɹeɪ.ʃn̩/

For p = -1, the values of q giving minimum spherical aberration (q = 0.71) and zero coma (q = 0.8) are approximately equal to each other.

1991, Virendra N. Mahajan, Aberration Theory Made Simple, page 27:

If the refractive index is low, the minimum spherical aberration is not greatly affected by the fact that the second lens operates in a converging beam, and the spherical aberration is approximately equal to h⁴K³.

2002, Michael J. Kidger, Fundamental Optical Design, page 151:

Conventional spherical intraocular lenses (IOLs) have positive spherical aberration.

2005, Mark Packer, I. Howard Fine, Richard S. Hoffman, “9: Wavefront Technology of Spherical Aberration”, in I. Howard Fine, Mark Packer, Richard Hoffman, editors, Refractive Lens Surgery, volume 1, page 81:

(optics) A type of lens aberration which causes blurriness, particularly away from the centre of the lens.


hydrogenase

From hydrogen + -ase, after dehydrogenase.

It is clear from the experiments cited already that we are dealing with a bacterial enzyme comparable with the dehydrogenases, the substrate in this case being molecular hydrogen. […] In order to conform with the accepted terminology we suggest that this enzyme be called "hydrogenase."

1930, Marjory Stephenson, LH Stickland, “Hydrogenase: a bacterial enzyme activating molecular hydrogen”, in Biochemical Journal:

(biochemistry) Any enzyme that catalyzes the reduction of a substrate by the reversible oxidation of hydrogen.


radiancy

radiancy (countable and uncountable, plural radiancies)

(physics) The amount of energy emitted, flux.


supercritical fluid

supercritical fluid (plural supercritical fluids)

The most commonly used supercritical fluids are carbon dioxide and water.

(physics) A substance at a temperature and pressure above its own thermodynamic critical point that can diffuse through solids like a gas and dissolve materials like a liquid.


Einstein-Rosen bridge

Einstein-Rosen bridge (plural Einstein-Rosen bridges)

From the names of the physicists who originally predicted it, Einstein (Albert Einstein) and Rosen (Nathan Rosen).

(physics) A type of wormhole that is inherently unstable and collapses before any information or matter can pass through.

ER=EPR

a conjecture about the nature of the universe that connects quantum physics to spacetime physics


dilatino

(physics) The hypothetical superpartner of the dilaton.


ceramidase

(biochemistry) An enzyme that separates the two parts of ceramide.


caloron

(physics, quantum field theory) In mathematical physics, a finite temperature instanton.


alpha radiation

(physics) The radiation of alpha particles as a result of radioactive decay.


chemodynamics

(physical chemistry) The study of the dynamics of chemical reactions


microtexture

(crystallography) The set of crystallographic orientations whose components are linked to their individual location in the microstructure


morphotropic

en-adj

morphotropic (comparative more morphotropic, superlative most morphotropic)

more morphotropic (comparative)
most morphotropic (superlative)

(crystallography) Of or pertaining to morphotropism


Chandrasekhar limit

(astronomy) The maximum theoretical mass of a white dwarf, approximately 1.4 solar masses.

Chandrasekhar limit
Subrahmanyan Chandrasekhar


blueshift

(physics) A change in the wavelength of light, in which the wavelength is shorter than when it was emitted at the source.


giant star

(astronomy) A star that has stopped fusing hydrogen in its core and as a result has grown much larger and brighter.


modulino

(physics) A singlet state thought to be a component of dark matter


electrical conductance

en-noun

electrical conductance (usually uncountable, plural electrical conductances)

A measure of how easily electricity flows along a certain path through an electrical element, and the real part of the reciprocal of electrical impedance.


gamma-ray burst

gamma-ray burst (plural gamma-ray bursts)

(astronomy) A flash of gamma rays that seem to originate from a random point in the sky; their most likely sources are believed to be supernova explosions of a very massive stars and mergers of neutron stars.


electrical inductance

electrical inductance (countable and uncountable, plural electrical inductances)

The ratio of the magnetic flux to the electric current flowing around an electrical circuit.


ornithine transcarbamylase

(biochemistry) An enzyme that catalyzes the reaction between carbamoyl phosphate and ornithine to form citrulline and phosphate.


ornithine carbamoyltransferase

ornithine transcarbamylase
ornithine transcarbamylase

(biochemistry) The enzyme ornithine transcarbamylase.


transition temperature

transition temperature (plural transition temperatures)

(physics) The temperature at which one phase of a material changes into another; a transition point

(physics, chemistry) The temperature at which one form of a polymorph changes into another


supercool

en-verb

supercool (third-person singular simple present supercools, present participle supercooling, simple past and past participle supercooled)

supercools (present singular third-person)
supercooling (participle present)
supercooled (participle past)
supercooled (past)

transition temperature
transition temperature

(physics) To cool a material below its transition temperature without that transition occurring


supercooled

en-adj

supercooled (comparative more supercooled, superlative most supercooled)

more supercooled (comparative)
most supercooled (superlative)

(physics) cooled below the transition temperature without the transition occurring


gravitational lensing

(astronomy) The action of a highly-massive object (such as a star, galaxy, or black hole) that acts as a gravitational lens and focuses light from a light source (such as another star or galaxy) that passes behind it as observed from the Earth.


signal-to-noise

electrical engineering
electrical engineering

(electrical engineering) The ratio comparing signal power to noise power.


SNR

(acoustics) Initialism of Single Number Rating, a measure of the efficacy of hearing protection


multiferroic

multiferroic (comparative more multiferroic, superlative most multiferroic)

more multiferroic (comparative)
most multiferroic (superlative)

(physics) Having multiple ferroic properties (e.g. both ferroelectric and ferromagnetic)


multiferroic

(physics) Any material having such properties


blackhole

(chiefly attributive) Alternative form of black hole


blackhole

en-verb

blackhole (third-person singular simple present blackholes, present participle blackholing, simple past and past participle blackholed)

blackholes (present singular third-person)
blackholing (participle present)
blackholed (participle past)
blackholed (past)


moment of force

en-noun

moment of force (plural moments of force)

(physics) The turning effect of a force applied to a rotational system at a distance from the axis of rotation. The moment is equal to the magnitude of the force multiplied by the perpendicular distance between its line of action and the axis of rotation.


second moment of inertia

second moment of inertia (plural second moments of inertia)

second moment of area
second moment of area

(engineering) A measure of a body's resistance to bending; second moment of area.

polar moment of inertia for torsional strength


polar moment of inertia

polar moment of inertia (plural polar moments of inertia)

(engineering) A measure of a body's resistance to twisting; a measure of torsional strength.

second moment of area for resistance to bending


second moment of area

second moment of area (plural second moments of area)

(engineering) A measure of a body's resistance to bending.


cellulase

(biochemistry) An enzyme that catalyzes the cellulolysis (or hydrolysis) of cellulose.


bioenergetics

(biology, physics) The study of the energy transformations that take place in living organisms.


deformylase

(biochemistry) An enzyme that removes the formyl group from some amino acids (especially from methionine).


aminopeptidase

(biochemistry) Any of several enzymes that catalyze the hydrolysis of the peptide bond of the terminal amino acid at the amino end of a polypeptide or protein

aminopeptydaza

any of several enzymes that catalyze the hydrolysis of the peptide bond of the terminal amino acid


proteinase

Thrombin is another endogenous serine proteinase that can be released from fibrin clot following gingival tissue injury or inflammation.

2017, E. S. Rovai, M. Holzhausen, “The Role of Proteinase-Activated Receptors 1 and 2 in the Regulation of Periodontal Tissue Metabolism and Disease”, in Journal of immunology research, →DOI:


metalloproteinase

(biochemistry) Any of several proteinases that have a metal atom (often zinc) at their active centre


luminous flux

luminous flux (countable and uncountable, plural luminous fluxes)

In photometry, the measure of the power of light as perceived by the human eye, in proportion to the power at each wavelength.


compactification

compactification (countable and uncountable, plural compactifications)

(physics) Any modification of a theory such that an infinite parameter becomes finite.

(physics) The reduction of the number of large spacetime dimensions of a physical theory by making some of them compact.


sphingomyelinase

(biochemistry) Any of several enzymes that catalyzes the cleavage of phosphodiester bonds in sphingomyelin


gelatinase

(biochemistry) Any of several proteolytic enzymes that catalyze the hydrolysis of gelatin.


cnoidal

Coined by Korteweg and de Vries in their paper in Philosophical Magazine (1895, series 5, vol. 39, pp. 422-443) to describe a class of solutions to the KdV equation which involve a Jacobi elliptic function. The Jacobi elliptic function involved is commonly written as cn(x|m), and the term cnoidal was designed to be analogous to sinusoidal, the word describing waves which involve the sine function.

(mathematics, physics) Describes a travelling wave whose amplitude is constricted; e.g. a wave in shallow water.

Jacobi elliptic function
en:Cnoidal wave


magnetic flux density

magnetic flux density (plural magnetic flux densities)

(physics) The measurable component of the response of a medium to the presence of a magnetic field.

tesla

the SI unit of measurement of magnetic flux density


spatial unmasking

The localization of sound by angular sources.


PF

PF (countable and uncountable, plural PFs)


forced convection

forced convection (countable and uncountable, plural forced convections)

Transfer of heat from the engine to the automobile radiator occurs by means of forced convection.

Transfer of oxygen from the lungs to the brain in the human body occurs by means of forced convection.

The convection (carriage) of contents of a fluid, such as mass or (especially) heat, by means of currents induced in the fluid by a force which is not dependent on density changes in the fluid induced by heat.


free convection

free convection (countable and uncountable, plural free convections)

The draft of a chimney due to a fire in a fireplace, and the rising of smoke particles from a fire, are due to free convection.

The transfer of heat from a hot object by means of upward hot air currents from the object, is due to free convection.

(physics) The convection (carriage) of contents of a fluid, such as mass or (especially) heat, by means of currents induced in the fluid by a buoyancy force which is dependent on an acceleration (such as gravity) acting upon density changes in the fluid which are induced by heat.


gravitational convection

gravitational convection (countable and uncountable, plural gravitational convections)

(physics) The convection (carriage) of contents of a fluid, such as mass or heat, by means of currents induced in the fluid by buoyancy forces which are dependent on gravity acting upon density differences within the fluid.


galactosyltransferase

The gene is the recipe for galactosyl transferase, an enzyme, i.e. a protein with the ability to catalyse a chemical reaction.

1999, Matt Ridley, Genome, Harper Perennial, published 2004, page 138:

(biochemistry) Any glycosyltransferase enzyme that catalyzes the transfer of galactose entities.


calpain

(biochemistry) Any of a family of enzymes that regulate calcium in the body.


sulfotransferase

(biochemistry) Any transferase enzyme that catalyses the transfer of sulfate groups


resuspend

en-verb

resuspend (third-person singular simple present resuspends, present participle resuspending, simple past and past participle resuspended)

resuspends (present singular third-person)
resuspending (participle present)
resuspended (participle past)
resuspended (past)

(ecology, chemistry, physics) To undergo (or cause to undergo) resuspension.


phosphodiesterase

(biochemistry) Any of a family of enzymes that catalyze the cleavage of phosphodiester links in nucleic acids.


RTG

radioisotope thermoelectric generator
w:radioisotope thermoelectric generator

Initialism of radioisotope thermoelectric generator (a device that generates electricity from the natural decay of radioactive material).


electrosorption

(chemistry, physics) adsorption on the surface of an electrode


galvanostat

(physics) A device that maintains a constant current in an electrolytic cell during the course of a coulometric titration


potentiostat

(physics) A device that maintains a constant potential during the course of a coulometric titration.


chronoamperometry

en-noun

chronoamperometry (countable and uncountable, plural chronoamperometries)

(physics, analytical chemistry) An analytical technique in which an electric current is measured during the course of a titration


underpotential

(physics, chemistry) A potential (for the deposition of a metal on a surface) that is greater than that predicted by the Nernst equation.


voltammetric

(physics, chemistry) Of or pertaining to voltammetry.


voltammetry

(physics, chemistry) Any of several electrochemical analytical technique in which a current is measured as a voltage is varied.


voltammogram

(physics, chemistry) A plot of the outcome of a voltammetry analysis


absorptance

Circa 20th century, from absorption + -ance.

The Shorter Oxford English Dictionary on Historical Principles

Oxford University Press
w:Oxford University Press

(optics, physics) Absorbed radiation and incident radiation in a ratio format; a measurement that shows how well a surface absorbs radiation.


absorption spectrum

absorption spectrum (plural absorption spectrums or absorption spectra)

absorption spectrums (plural)
absorption spectra (plural)

electromagnetic radiation
electromagnetic radiation

(physics) The characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope.


carbenium

(organic chemistry, informal) Any carbocation, but especially methylium


contactor

Compressed air is used for the operation of certain contactors, the sanders, the horn, and the re-fuelling equipment, but vacuum brakes are fitted to the locomotive.

1951 January, “Diesel-Electric Branch-Line Locomotive for British Railways”, in Railway Magazine, page 71:

(electrical engineering) A relay used to control an electrical power circuit


exothermicity

exothermicity (usually uncountable, plural exothermicities)

The second step is substantially exothermic and fast; the overall exothermicity ensures that there is no tendency for the reaction to reverse.

2004, Richard A. Jackson, Mechanisms in Organic Reactions, page 137:

(chemistry, physics, uncountable) The quality or state of being exothermic.


microstrain

microstrain (countable and uncountable, plural microstrains)

(physics) A strain expressed in terms of parts per million


crystallizer

chemical engineering
chemical engineering

(chemical engineering) The chemical engineering vessel in which the crystallization of a solution takes place.


polarizer

(physics) Any device that produces polarized light.


deionize

en-verb

deionize (third-person singular simple present deionizes, present participle deionizing, simple past and past participle deionized)

deionizes (present singular third-person)
deionizing (participle present)
deionized (participle past)
deionized (past)

(transitive, physical chemistry) To remove the ions from; to deprive of ions.

To cause (an ionized substance) to return to a neutral state; to convert (an ion) into a neutral atom or molecule.

Water can be deionized using ion exchange resins.

To remove the ionic constituents from (a liquid, e.g. water).

(intransitive, physical chemistry) To be deprived of ions.

Sparks have been made with durations as light sources down to a few nanoseconds, the advantage being that the ionized gas which created the light can deionize and dissipate its heat sufficiently quickly whereas a discharge in gases like xenon in a bottle deionizes and dissipates more slowly.

1981 June 25, George H. Lunn, “High-speed photography”, in Nature, volume 291, →DOI, page 618:

In the acidic medium at pH 2.0, amino, imino and hydroxyl groups of the hybrid are protonated and KP [ketoprofen] deionizes and becomes less soluble [36]; this leads to a decrease in the release rate and percentage of KP.

2021 October, Islam M. Minisy, Nehal A. Salahuddin, Mohamad M. Ayad, “In vitro release study of ketoprofen-loaded chitosan/polyaniline nanofibers”, in Polymer Bulletin, volume 78, →DOI, page 5616:

Of an ionized substance, to return to a neutral state.


superheated

en-adj

superheated (comparative more superheated, superlative most superheated)

more superheated (comparative)
most superheated (superlative)

(physics) heated above the critical point


cationic detergent

en-noun

cationic detergent (plural cationic detergents)

(physical chemistry) Any detergent in which the lipophilic part of the molecule is a cation; examples include long-chain quaternary ammonium compounds


anionic detergent

anionic detergent (plural anionic detergents)

(physical chemistry) Any detergent in which the lipophilic part of the molecule is an anion; examples include soaps and synthetic long-chain sulfates and sulfonates


autocatalysed

(chemistry) Describing the products of an autocatalysis reaction


bicapped

(physical chemistry, of a molecule) Having the shape of such a prism


acetylglucosaminyltransferase

(biochemistry) An enzyme that adds acetylglucosamine to heptose residues of bacterial cell walls


peptidoglycan

A polymer of glycan and peptides found in bacterial cell walls


comonomer

(chemistry) Any of a group of monomers that, when polymerized, form a copolymer


cholinesterase

The little tablets she has to take inhibit cholinesterase, an enzyme that breaks down the neurotransmitter acetylcholine.

2020, Avni Doshi, Burnt Sugar, Hamish Hamilton, page 11:

(biochemistry) An enzyme that catalyzes the hydrolysis of choline-based esters (acetylcholine or butyrylcholine).


streptokinase

(biochemistry, pharmacology) An enzyme produced by some streptococci which is involved in breaking down red blood cells by activating plasminogen to produce plasmin. It is used to treat blood clots and inflammation.


metron

From Ancient Greek μέτρον (métron). Doublet of meter, metre, and mether.

(physics) A two-dimensional quantum of multidimensional space, a unit of measure in Heim theory.


monogon

A new optical scanner is described which serves as a monogon or single-facet device, providing one scan per shaft rotation.

1991, Beam Deflection, Scanning Technologies, edited by Gerald F. Marshall, Leo Beiser, →ISBN, page 33:

1999, William L. Wolfe, Infrared Design Examples, Tutorial Texts in Optical Engineering Volume TT36, SPIE Press, →ISBN, page 133,
These devices also start with the monogon, a plane mirror, and include the bigon, a two-sided mirror, the trigon, quadrigon, and general n-gons.


dynamical system

dynamical system (plural dynamical systems)

(mathematics, physics) A system which is time-dependent.


diuranate

(inorganic chemistry) The dibasic anion U₂O₇²⁻ or any salt containing this anion


uranate

/ˈjʊəɹəneɪt/

(inorganic chemistry) Any of several oxyanions of uranium; any salt containing these anions.


adenyltransferase

(biochemistry) Any transferase that catalyzes the transfer of phosphate groups from or to adenyl groups in nucleic acids


lactamase

(biochemistry) Any enzyme that catalyzes the opening of a lactam ring, especially one that deactivates a lactam-containing antibiotic


ferrocenium

(organic chemistry) The univalent cation [Fe(C₅H₅)₂]⁺ obtained by the oxidation of ferrocene


XPS

XML Paper Specification
w:XML Paper Specification

(computing) Initialism of XML Paper Specification.


XPS

XPS (countable and uncountable, plural XPSs)

(X-ray photoelectron spectroscopy): French: XPS

(X-ray photoelectron spectroscope): French: XPS

(uncountable, physics) Initialism of X-ray photoelectron spectroscopy.

(countable, physics) Initialism of X-ray photoelectron spectroscope.


nuclear waste

nuclear waste (countable and uncountable, plural nuclear wastes)

The more or less radioactive waste produced by nuclear reactors and others.


tortuosity

tortuosity (countable and uncountable, plural tortuosities)

From tortuo(u)s + -ity, from Latin tortuositas; compare French tortuosité.

(physics) A property of curve being tortuous, commonly used to describe diffusion in porous media.

Tortuosität

(physics) property of curve being tortuous


closed system

(physics, physical chemistry, engineering) A physical system whose interaction with its environment is limited to particular types of transfer, so that certain quantities are conserved within the system.

(thermodynamics) A system that can exchange heat and work, but not matter, with its surroundings.


isolated system

isolated system (plural isolated systems)

(physics) A system that does not interact with its surroundings. Depending on context this may mean that its total energy and/or momentum stay constant. In thermodynamics, isolated is usually used to indicate that the system's energy does not change. In mechanics it is used to indicate that the system's momentum does not change.


gaugino

(physics) Any of a series of hypothetical particles that are the superpartners of gauge bosons


superpartner

(physics) Any particle related to a more standard particle by supersymmetry.


trigonal

en-adj

trigonal (comparative more trigonal, superlative most trigonal)

more trigonal (comparative)
most trigonal (superlative)

From Latin trigōnālis (“triangular”), equivalent to trigon + -al.

(crystallography) Of or pertaining to a crystal system with three equal and equally inclined but not perpendicular axes.


basin of attraction

en-noun

basin of attraction (plural basins of attraction)

(mathematics, physics) Informally, a set of points from which a dynamical system spontaneously moves to a particular attractor.


metabisulfite

(inorganic chemistry) The oxyanion of sulfur S₂O₅²⁻ or any salt containing this ion


contraterrene

/ˌkɒntɹətəˈɹiːn/

This means just one thing: the instant contraterrene matter struck ordinary matter, a terrific explosion would occur!

1952, Science Digest, volume 31, page 67:

Then I started jacking up the voltage, and modified the thing with a double-polarity field somewhat similar to the molecular motion field except that it works on a sub-nucleonic level. As a result, about half of the lead fed into the chamber became contraterrene lead! The atoms just turned themselves inside out, so to speak, giving us an atom with positrons circling a negatively charged nucleus.

1957, John W. Campbell, Islands of Space:

(obsolete in physics, science fiction) Made of or pertaining to antimatter.


magic carpet

Have you ever been, have you ever been, to Electric Ladyland? / The magic carpet waits for you, so don't you be late

1968, Jimi Hendrix (lyrics and music), “Have You Ever Been (To Electric Ladyland)”, in Electric Ladyland, performed by The Jimi Hendrix Experience:

(fiction) A carpet capable either of magical flight, or instantaneous transport from one place to another, used as a means of travel.

The relaunch of the railway comes alongside other major improvement works including new 'magic carpet' conveyor belts for skiers using the beginner slopes.

2023 April 5, “News in pictures: New livery adorns Cairngorm funicular”, in RAIL, number 980, page 28:

(skiing) A conveyor belt to transport skiers/snowboarders.


switchgear

switchgear (countable and uncountable, plural switchgears)

The track-sectioning cabins house not only switchgear for the traction current, but also transformers to provide power supplies to the signalling equipment.

1961 December, “Planning the London Midland main-line electrification”, in Trains Illustrated, page 722:

(electrical engineering) A device used to control, meter, protect, and regulate electronics as part of electricity generation, transmission, and distribution.


(astrophysics) Abbreviation of Lagrange point 1, located between the larger and smaller objects along a line connecting the two.


Coordinate term: L1

That is, for almost all late second language (L2) learners, the phonetic realization of phonological structures in the L2 is markedly different from native-language patterns.

2008, Jette G. Hansen Edwards, Mary L. Zampini, Phonology and Second Language Acquisition, John Benjamins Publishing, →ISBN, page 153:

This advantage was pertinent in the Hong Kong context where English is largely an L2 language, although would not be expected to be as large in an L1 context.

2017, Di Zou, James Lambert, “Feedback methods for student voice in the digital age”, in British Journal of Educational Technology, volume 48, number 5, page 1085:

A second language (a language being learned, as opposed to mother tongue).


(astrophysics) Abbreviation of Lagrange point 2, located beyond the smaller object on a line passing through the centers of the smaller and larger objects.


harmonic oscillator

harmonic oscillator (plural harmonic oscillators)

(classical mechanics) A system which, when displaced from its equilibrium position, experiences a restoring force F proportional to the displacement x according to Hooke's law: F=-kx,, where k is a positive constant.


flatlander

ridge-runner

antonym(s) of “person who was born or raised by someone outside low altitude mountainous regions”

To the flatlander the third dimension necessarily appears to be a process, something he travels through as he moves or is shifted across an area. He cannot occupy more than one position in the third dimension simultaneously.

1978, Henry Wesley Grayson, The Theory of Relativity Revisited:

The perceptual acts of the two-dimensional flatlander are seen by the projective Euclidean eyes as funny, [...]

1979, “A Form of Pantomime”, in Link, volume 21, part 3, page 86:

For our omniscient Mathematician, on the other hand, the time dimension from the beginning to the end of the game would be copresent, as would be our gaze of a flatlander's world.

1991, Floyd Merrell, Unthinking Thinking: Jorge Luis Borges, mathematics, and the new physics, page 232:

Earlier we gave the example of a plane taking off in the third dimension apparently disappearing from the view of a two-dimensional flatlander; analogously, particles appearing from the fifth dimension, or disappearing into it, could be a signal at the LHC that space-time is indeed, like Emmenthal cheese, permeated with little bubbles which are at the edge of our present abilities to measure.

2009, Frank Close, Nothing: a very short introduction, page 140:

(physics) An inhabitant of or observer in a universe with two spatial dimensions.


cryptochiral

en-adj

cryptochiral (comparative more cryptochiral, superlative most cryptochiral)

more cryptochiral (comparative)
most cryptochiral (superlative)

(physical chemistry) That exhibits cryptochirality


cryptochirality

(physical chemistry) A form of chirality in which the properties of the pair of chiral compounds are indistinguishable.


isotactic

(physical chemistry, of a polymer) Having substituents arranged in the same (rather than random) configuration in each repeat unit


cyclovoltammetry

(physical chemistry) A form of scanning polarimetry.


mass spectrometer

en-noun

mass spectrometer (plural mass spectrometers)

A device used in mass spectrometry to discover the mass spectrum of a given substance.


superposition principle

(mathematics, physics) The principle stating that for a linear system, the net response is the sum of the response associated with each individual input.

principe de superposition

the principle stating that for a linear system, the net response is the sum of the response associated with each individual input


HEU

highly-enriched uranium
highly-enriched uranium#English


LEU

LEU (countable and uncountable, plural LEUs)

low-enriched uranium
low-enriched uranium#English

(nuclear) Initialism of low-enriched uranium.


SEU

SEU (countable and uncountable, plural SEUs)

slightly-enriched uranium
slightly-enriched uranium#English

Initialism of slightly-enriched uranium.


low-enriched uranium

(nuclear physics) Enriched uranium with at least 2% but less than 20% uranium-235, enough to sustain a nuclear fission chain reaction in a nuclear reactor moderated by light water but not enough to allow a self-sustaining fission chain reaction without a moderator; used as the main nuclear fuel in most commercial nuclear reactors used to generate electricity.


mutarotation

mutarotation (countable and uncountable, plural mutarotations)

(organic chemistry, physical chemistry, biochemistry) A dynamic change in the rotation of polarized light as it passes through a fresh solution of some sugars as an equilibrium mixture of anomers is formed

mutarotazione

a dynamic change in the rotation of polarized light


polyuronide

(organic chemistry) Any polysaccharide consisting of uronic acid residues, with or without other monosaccharides.


spectroscopist

A scientist specialising in spectroscopy.

spectroscopiste

a scientist specialising in spectroscopy


superinsulator

(physics) Any material that exhibits superinsulation


superinsulation

(physics) A quantum state of zero electrical conductivity (or infinite resistance) - the opposite of superconductivity.


bandshape

(physics) The shape (distribution of strengths with frequency) of a band of electromagnetic radiation


magnetogyric

en-adj

magnetogyric (comparative more magnetogyric, superlative most magnetogyric)

more magnetogyric (comparative)
most magnetogyric (superlative)


light dependent resistor

en-noun

light dependent resistor (plural light dependent resistors)


collisional

(physics) Of or pertaining to collisions (especially between particles)


aquamolality

(physical chemistry) solvomolality in the case of water as solvent


solvomolality

solvomolality (countable and uncountable, plural solvomolalities)

(physical chemistry) A measure of the comparative solubility of a material in a mixture of a solvent and a reference solvent.


peritectoid

(physics) Describes the isothermal reversible reaction of multiple solid phases to form a new system of fewer solid phases during cooling.


peritectic

(physics) Describes the isothermal reversible reaction of a liquid phase and a solid phase to form a second solid phase during cooling


electropositivity

electropositivity (countable and uncountable, plural electropositivities)

(uncountable) The condition of being electropositive.


attenuance

(physics) absorbance plus losses due to scattering and luminescence


absorbancy

(physics) Alternative form of absorbency


hypsochromic

en-adj

hypsochromic (comparative more hypsochromic, superlative most hypsochromic)

more hypsochromic (comparative)
most hypsochromic (superlative)

(physics) Of a change in the position of a spectral band, to a higher frequency.


bathochromic

bathochromic (comparative more bathochromic, superlative most bathochromic)

more bathochromic (comparative)
most bathochromic (superlative)

(physics) Of a change in the position of a spectral band, to a lower frequency


bilayer

Any structure consisting of two layers of molecules

bicouche

any structure consisting of two layers of molecules


biphotonic

(physics) Involving the simultaneous absorption of two photons


attenuator

(physics) Any device that attenuates a signal, but especially an electronic device that reduces the amplitude of a signal


chemiexcitation

en-noun

chemiexcitation (countable and uncountable, plural chemiexcitations)

(physical chemistry) The generation of an electronically excited molecule by a chemical reaction of reactants in their ground state

χημειοδιέγερση

The generation an of an electronically excited molecule by a chemical reaction


laser diode

light-emitting diode
light-emitting diode

(physics) A laser whose active medium is a form of light-emitting diode


downconversion

downconversion (countable and uncountable, plural downconversions)

(physics) The interaction of a photon with a medium in which it is converted into two photons of lower frequencies such that energy is conserved.


diffractive

en-adj

diffractive (comparative more diffractive, superlative most diffractive)

more diffractive (comparative)
most diffractive (superlative)

(physics) Having the ability to diffract light


dynode

1930s: from Ancient Greek δύναμις (dúnamis) + -ode

(physics) Any of a series of electrodes within a photomultiplier tube.


photochemist

(chemistry) A chemist who works in photochemistry


spectrofluorometer

fluorescence spectroscopy
fluorescence spectroscopy

(physics, chemistry) A spectrometer used in fluorescence spectroscopy


fluorescence spectroscopy

(physics, chemistry) An analytical technique that analyzes the fluorescence produced by a sample; fluorometry or spectrofluorimetry.


electrochromism

(chemistry, physics) The ability to change colour when subjected to an electric charge


electrochemiluminescence

(chemistry, physics) The emission of light as a result of an electrochemical reaction


exterplex

(chemistry, physics) A termolecular exciplex


exciplex

(chemistry, physics) Any complex or heteronuclear molecule existing in an excited state, that is dissociated in the ground state.


fluorometry

(chemistry, physics) An analytical technique that uses fluorescence to detect and identify small samples of substances


fluorogenic

fluorogenic (comparative more fluorogenic, superlative most fluorogenic)

more fluorogenic (comparative)
most fluorogenic (superlative)


excimer

(chemistry, physics) Any diatomic exciplex


exitance

The entire east sky provided an equivalent exitance of 19 kilolumens per square meter (Method 1) […]

1984-7, John E. Kaufman, Jack F. Christensen, (Illuminating Engineering Society of North America), IES lighting handbook: Volume 1984

For a given temperature, exitance is a function of wavelength. This results in a family of spectral exitance curves dependent on temperature. The equation for spectral exitance is the Planck equation: […]

1998, Glenn D. Boreman, Basic electro-optics for electrical engineers, page 49:

In practice, unless otherwise indicated, it is accepted that exitance is taken to be a hemispherical quantity.

1999, Joseph Caniou, Passive infrared detection: theory and applications, page 42:

Exitance is the amount of power per unit area expressed in watts per square meter (w/m2), or square centimeter (w/cm2), that leaves a surface and is radiated into a hemisphere.

2006, Craig M. Payne, Principles of Naval Weapon Systems, page 104:


heliochromism

(physics, chemistry) The property of certain photochromic materials of colouring in near-ultraviolet light and then fading in its absence; they are used in the lenses of sunglasses


hypochromic

hypochromic (comparative more hypochromic, superlative most hypochromic)

more hypochromic (comparative)
most hypochromic (superlative)

(physics, chemistry) Describing a decrease in the intensity of a spectral band due to a change in the molecular environment


isoabsorption

(physics, chemistry) A feature of the absorption spectra of a mixture of substances that are reacting with each other, in that at one frequency the absorption will remain constant throughout the reaction


hyperchromic

hyperchromic (comparative more hyperchromic, superlative most hyperchromic)

more hyperchromic (comparative)
most hyperchromic (superlative)

(physics, chemistry) Describing an increase in the intensity of a spectral band due to a change in the molecular environment.


isosbestic

From Ancient Greek iso- + σβεστός (sbestós, “extinguished”), verbal adjective to σβέννυμι (sbénnumi, “I extinguish”).

(physics, chemistry) Having a constant or equal absorption


irradiance

en-noun

irradiance (countable and uncountable, plural irradiances)

The geometry of the cone θ and the irradiance at the image of the carbon block were used to determine the absolute steradiancy of the energy in the cone θ as a radiometer calibration value.

1959, United States. National Aeronautics and Space Administration, NASA Technical Note (issues 3641-3650, page 15)

(physics) The radiant power received by unit area of surface.

säteilytysvoimakkuus

physics: Radiant power received by unit area of surface


luminophore

From lumin-, stem of Latin lumen + -phore.

(chemistry, physics) That part of a molecule that is responsible for a given emission band when it undergoes luminescence.


multiconfiguration

(physics, chemistry) Having, or involving multiple configurations.


multichromophoric

(chemistry, physics) Having multiple chromophores


nonrelativistic

Not moving at a speed comparable to the speed of light.


fluence

fluence (countable and uncountable, plural fluences)

(physics) A measure of particle flux (or that of a pulse of electromagnetic radiation)


nondegenerate

In fanciful language, if our universe is nondegenerate, then so will be almost every world in it.

1995, Andreu Mas-Colell, Michael D. Whinston, and Jerry R. Green, Microeconomic Theory, Oxford University Press, page 595:


nondegenerate

(mathematics, physics) An instance or configuration that is not degenerate.


multiplet

(physics) A spectral line that has multiple components.

(physics) Any of several groupings of subatomic particles that share most properties, but have different charges.


PIV

PIV (countable and uncountable, plural PIVs)

(optics) Initialism of particle image velocimetry.


photoactivation

photoactivation (usually uncountable, plural photoactivations)

(physics, chemistry) The absorption of energy from a photon in raising a molecule (or chromophore) from the ground state; especially the first stage of photosynthesis in which energy is absorbed by chlorophyll


optoacoustic

en-adj

optoacoustic (comparative more optoacoustic, superlative most optoacoustic)

more optoacoustic (comparative)
most optoacoustic (superlative)

(physics) Describing any of several interactions between light and sound


photochirogenesis

(chemistry, physics) The photochemical induction of molecular chirality.


photocage

(chemistry, physics) Any of several molecular species that can be activated by light; they are used especially in biochemistry to attach a molecule to a biologically active compound and then study its behaviour once activated.


photocleave

en-verb

photocleave (third-person singular simple present photocleaves, present participle photocleaving, simple past and past participle photocleaved)

photocleaves (present singular third-person)
photocleaving (participle present)
photocleaved (participle past)
photocleaved (past)

(chemistry, physics) To cleave a bond by photolysis


photoelectrochemical

(chemistry, physics) Of or pertaining to photoelectrochemistry


photocyclization

en-noun

photocyclization (countable and uncountable, plural photocyclizations)

Norrish-Yang reaction
Norrish-Yang reaction

(chemistry, physics) Any intramolecular photochemical process leading to a ring system by formation of one new single bond, either by a concerted process (e.g., electrocyclization) or by multi-step processes such as the Norrish-Yang reaction.


photogalvanic

(chemistry, physics) Of or pertaining to the production of electricity from light


photoelectrochemistry

(chemistry, physics) A field of study combining photochemistry and electrochemistry that studies the interaction of light with electrochemical systems


photogeneration

(physics) The generation of something (especially of electrical energy) by light.


photophysical

(physics) Describing photoexcitation and any subsequent process that does not involve any chemical change


photopatterning

(physics) The production of a photochemical etching on the surface of a semiconductor


photopolymerization

(chemistry, physics) Any polymerization reaction that requires light for the propagation step


extraordinary optical transmission

extraordinary optical transmission (plural extraordinary optical transmissions)

extraordinary optical transmissions (plural)

(physics) The transmission of light through metallic films perforated by nanohole arrays at optical frequencies


photoinitiation

(chemistry, physics) The photoproduction of a radical or ion that is capable of initiating a chain reaction; used especially to initiate polymerization


photoresponse

(chemistry, physics, biology) Any measurable chemical or biological response to light


photorearrangement

(chemistry, physics) Any photoisomerization reaction that leads to changes in the arrangement of atoms in a molecule


photosubstitution

(chemistry, physics) Any photochemical substitution reaction


photothermal

(physics) Involving the production of heat by photoexcitation.


piezoluminescence

(physics) luminescence produced by the action of pressure on certain solids


photoselected

en-adj

photoselected (comparative more photoselected, superlative most photoselected)

more photoselected (comparative)
most photoselected (superlative)


photoselection

(physics, chemistry) A technique in which an aligned subset of sample molecules is selected by an exciting light beam.


polychromator

(physics) An optical device used to generate multiple beams of light of different frequency


predissociation

(physics, chemistry) The dissociation of a molecule, following absorption of light energy, by tunnelling


photostimulated

photostimulated (comparative more photostimulated, superlative most photostimulated)

more photostimulated (comparative)
most photostimulated (superlative)

(physics, chemistry) stimulated by the absorption of light energy


radiationless

(physics) That involves no radiation of energy


photostationary

photostationary (comparative more photostationary, superlative most photostationary)

more photostationary (comparative)
most photostationary (superlative)

(physics, chemistry) Describing a steady state reached by a photochemical reaction in which the rates of formation and disappearance of transient species are equal


reabsorption

en-noun

reabsorption (countable and uncountable, plural reabsorptions)

(physics) The subsequent absorption of emitted radiation.


responsivity

responsivity (countable and uncountable, plural responsivities)

(physics) A measure of the gain of a system


photovoltaics

(physics) The technology of the conversion of sunlight into electricity using semiconductors that exhibit the photovoltaic effect.


photorelease

(chemistry, physics) The photoinduced release of one compound from another


rovibronic

en-adj

rovibronic (comparative more rovibronic, superlative most rovibronic)

more rovibronic (comparative)
most rovibronic (superlative)

From rotational + vibrational + electronic.

(physics) Describing a rotational sublevel of a vibrational level of an electronic state.


semiclassical

semiclassical (comparative more semiclassical, superlative most semiclassical)

more semiclassical (comparative)
most semiclassical (superlative)

(physics) Describing any of various approximations to either relativistic or quantum mechanical physics that retains elements of classical physics


semicoherent

(physics, of radiation) Partially coherent


semireflective

semireflective (comparative more semireflective, superlative most semireflective)

more semireflective (comparative)
most semireflective (superlative)

(physics, of a surface) Partially reflective


superexchange

(physics) An interaction of the electrons of two molecular entities mediated by one or more molecules or ions.


vibronic

vibronic (comparative more vibronic, superlative most vibronic)

more vibronic (comparative)
most vibronic (superlative)

(physics) Describing relationships between electronic and vibrational motions or quantum states


thermochromism

(physics) The reversible change of colour with temperature of some materials


superradiance

(physics) The cooperative enhancement of spontaneous emission by constructive interatomic interference, producing an incoherent form of radiation.


zwitterionic

zwitterionic (comparative more zwitterionic, superlative most zwitterionic)

more zwitterionic (comparative)
most zwitterionic (superlative)


upconversion

en-noun

upconversion (countable and uncountable, plural upconversions)

(physics) The process by which two photons combine in a nonlinear medium to produce a higher-energy photon with a frequency that is the sum of those of the two photons


bioelectricity

(biology, physics) Any form of electricity generated within an organism, especially by a muscle or nerve.

bioelectricitat

Electricity generated within an organism


plutonium dioxide

(inorganic chemistry) The yellow-brown solid, PuO₂, formed by the spontaneous oxidation of plutonium metal; it is used in mixed oxide fuel for nuclear reactors


mixed oxide

(inorganic chemistry) Any mixture of the oxides of more than one metal, but especially the blend of plutonium and uranium oxides that is used (as MOX fuel) in nuclear reactors


breakpoint

(physics) The point where surface water waves are breaking in, e.g., oceans or lakes.


diastereoisomeric

en-adj

diastereoisomeric (comparative more diastereoisomeric, superlative most diastereoisomeric)

more diastereoisomeric (comparative)
most diastereoisomeric (superlative)

(physical chemistry) Of or pertaining to diastereoisomers or diastereoisomerism


diastereoisomerism

(physical chemistry) Any form of stereoisomerism other than enantiomerism


epigene

(crystallography) Foreign; unusual; not natural to the substance in which it was found.


duplet

(physics) the set of two electrons, with antiparallel spins, in the same orbital


monooxygenase

(biochemistry) Any oxygenase enzyme that catalyzes the incorporation of a single atom of molecular oxygen into a substrate, the other atom being reduced to water; active in the metabolism of many foreign compounds


quantal

(physics) Of or pertaining to a quantum.


transmat

Attested since the 1950s, from transmit or transfer and matter; perhaps popularized by the British science fiction television series Doctor Who.

One of these days.., they'll invent a Transmat that'll set you down anywhere.

1959 June 20, Laurence Janifer, “Obey that Impulse!”, in Future Science Fiction, number 43, page 40:

Three lines of workers began to vanish into the transmats, heading for their homes in the android compounds of five continents, […]

1970 June 20, Robert Silverberg, “The Tower of Glass”, in Galaxy Science Fiction, volume 30, number 3, page 83:

TIME LORD: Ah. Welcome, Doctor.
DOCTOR: What's going on? Don't you realize how dangerous it is to intercept a transmat beam?
TIME LORD: Oh, come, Doctor, not with our techniques. We Time Lords transcended such simple mechanical devices when the universe was less than half its present size.

1975, Terry Nation, Genesis of the Daleks (Doctor Who, season 12, serial 4), opening dialogue

You are in a TRANS-MAT unit. You see a faulty control panel with a button on it.

1983, The Long Way Home (video game published with 16/48 Magazine)

LYNDA: Oh, that's the transmat. Scrambles your head — I was sick for days.

2005, Russell T Davies, Bad Wolf (Doctor Who series 1, episode 12)

(British, science fiction) A teleporter; a fictional device that transfers/transmits matter from one location to another without the object traversing the intervening distance as itself.


transmat

en-verb

transmat (third-person singular simple present transmats, present participle transmatting, simple past and past participle transmatted)

transmats (present singular third-person)
transmatting (participle present)
transmatted (participle past)
transmatted (past)

It wasn't far enough away to think about transmatting and besides, that was no longer a viable option, what with vandals having wrecked some of the booths in the area.

1991, Peter David, Michael Jan Friedman, Carmen Carter, Robert Greenberger, Doomsday World (Star Trek: The Next Generation; 12), Pocket Books, →ISBN, page 171:

'No, you're not,' Blandish put in smoothly 'You're transmatting down with me. I'll head the away team and I'll consent to let you advise.'

1999, Paul Magrs, Jeremy Hoad, The Blue Angel (Doctor Who: Eighth Doctor Adventures; 27), BBC Worldwide, →ISBN, page 36:

Donna twisted her neck around to try to find the Doctor, but she realised that she'd been transmatted alone.

2010, Mark Michalowski, Shining Darkness (Doctor Who: New Series Adventures; 27), BBC Worldwide, →ISBN, page 17:

(British, science fiction, transitive, intransitive) To teleport; to (cause to) travel via transmat device.


hydratase

(biochemistry) Any enzyme that catalyzes the addition or removal of the elements of water; a hydrase


conformationally

en-adv

conformationally (comparative more conformationally, superlative most conformationally)

more conformationally (comparative)
most conformationally (superlative)

(physical chemistry) With respect to the conformation of a molecule


milligray

(physics) A unit of energy absorbed from ionizing radiation equal to 10⁻³ grays


microgray

(physics) A unit of energy absorbed from ionizing radiation, equal to 10⁻⁶ grays.


microsievert

(physics) A unit of ionizing radiation equal to 10⁻⁶ sieverts


dehydratase

(biochemistry) Any enzyme that catalyzes the removal of the elements of water from a compound, often leaving a double bond.


millisievert

(physics) A unit of ionizing radiation equal to 10⁻³ sieverts

ミリシーベルト

unit of ionizing radiation equal to 10-3 sieverts


electrogenesis

en-noun

electrogenesis (usually uncountable, plural electrogeneses)

(biochemistry, physics) The production of electricity (or the transfer of electrons) (typically in the tissues of a living organism)


peptidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of peptides into amino acids; a protease.


transpeptidase

(biochemistry) Any enzyme that catalyzes the transfer of an amino or peptide group from one molecule to another


esterase

(biochemistry) Any enzyme that catalyzes the hydrolysis of an ester


adiabaticity

adiabaticity (countable and uncountable, plural adiabaticities)

(physics, physical chemistry) The condition of being adiabatic; A measure of the extent to which a process is adiabatic.


hydroxylase

(biochemistry) Any of several enzymes that catalyze the oxidation of compounds by the introduction of hydroxyl groups.


countercation

(chemistry) A positively charged ion (cation) that forms an ionic bond with an anion.


counteranion

(chemistry) A negatively charged counterion


counterion

(chemistry) Any ion of opposite charge to another in a solution or other electrochemical system


desaturase

(biochemistry) Any enzyme that catalyzes the conversion of single to double bonds, especially in the production of essential fatty acids.


carboxylase

(biochemistry) Any enzyme that catalyzes either a carboxylation or decarboxylation reaction.

羧化酶

any enzyme that catalyzes either a carboxylation or decarboxylation reaction


elongase

(biochemistry) Any enzyme that catalyzes the elongation of an aliphatic chain, but especially one that elongates a fatty acid


gegenion

From the German gegen (“against”) + ion.

(physical chemistry, physics) A counterion: an ion of opposite charge to another in an electrochemical or ion transport system.


nanoanalysis

(physics) The analysis of a surface or material at the nanometer level


electroendosmosis

(physics) endosmosis under the influence of an electric field


electrodispersion

(physics, chemistry) a broadening of the peaks in electrophoresis due to differential conductivity


copolymerization

The polymerization of multiple monomers to form a copolymer


spring constant

spring constant (plural spring constants)

(physics) A characteristic of a spring which is defined as the ratio of the force affecting the spring to the displacement caused by it.


advectively

(earth science, chemistry, physics) In an advective manner.


mesophase

(physical chemistry) Any of the phases of a liquid crystal


microphase

(physics) A relatively small-scale part of a solid phase that has a different morphology than that of its surroundings


conductimetry

(chemistry, physics) The measurement of the conductance of a solution, especially during a reaction or titration

conductimétrie

the measurement of the conductance of a solution, especially during a reaction or titration


amperometric

(physical chemistry) That involves measurement of an electric current during a process such as titration

amperometrisch

that involves measurement of an electric current


gyroid

pentagonal icositetrahedron
pentagonal icositetrahedron#English

pentagonal icosikaitetrahedron
pentagonal icosikaitetrahedron#English

(crystallography) Synonym of pentagonal icositetrahedron or pentagonal icosikaitetrahedron


photofading

(chemistry, physics) photochemical fading


photoconversion

(chemistry, physics) photochemical conversion


photoexchange

(chemistry, physics) photochemical exchange


photodamage

(chemistry, physics) photochemical damage


photoreversion

(chemistry, physics) photochemical reversion


photoaquation

photoaquation (countable and uncountable, plural photoaquations)

(chemistry, physics) photochemical aquation


photodecolouration

(chemistry, physics) photochemical decolouration


photocycloreversion

(chemistry, physics) photochemical cycloreversion


photoelimination

(chemistry, physics) photochemical elimination


photohydrolysis

photohydrolysis (countable and uncountable, plural photohydrolyses)

(chemistry, physics) photochemical hydrolysis


phototransformation

(chemistry, physics) photochemical transformation


photoelectronic

en-adj

photoelectronic (comparative more photoelectronic, superlative most photoelectronic)

more photoelectronic (comparative)
most photoelectronic (superlative)

(physics) Describing any electronic effect or device that is affected by light


manometry

en-noun

manometry (countable and uncountable, plural manometries)

From Ancient Greek μανός (manós, “thin, rare”) + -metry.

af

(physics) The measurement of pressure using a manometer


photorheological

(physics, chemistry) Describing any rheological property that can be modified by exposure to light.


photoreversible

(physical chemistry) Describing any compound or system that can exist in two forms, and can be changed from one to the other by the appropriate influence of light


thermoelement

(physics) A thermoelectric couple used to convert heat into electricity; a thermocouple


deadenylase

(biochemistry) Any enzyme that catalyzes a deadenylation reaction


potentiometry

(physics) The measurement of electrical potential (voltage) using a potentiometer


radiochemical

(physics, chemistry) Of or pertaining to radiochemistry

(physics, chemistry) Describing a chemical change that is the result of ionizing radiation


transplutonium

en-adj

transplutonium (comparative more transplutonium, superlative most transplutonium)

more transplutonium (comparative)
most transplutonium (superlative)

(physics, chemistry) Describing elements having an atomic number greater than that of plutonium (94)


antiferromagnet

From anti- + ferromagnet or antiferro- + magnet.


antiferromagnetically

(physics) In an antiferromagnetic manner


magnetoception

(biology, physics) The ability of birds or other animals to detect magnetic fields as an aid to navigation.


superparamagnetism

(physics) paramagnetism that occurs below the Curie temperature or the Néel temperature


superparamagnetic

superparamagnetic (comparative more superparamagnetic, superlative most superparamagnetic)

more superparamagnetic (comparative)
most superparamagnetic (superlative)

(physics) Of, pertaining to, or exhibiting superparamagnetism.


subspectrum

(physics) Any of a number of spectra of components of a mixture that together make an observed spectrum


memristance

(physics) Electrical resistance that varies according to the history of electric charge that has flowed through a device


memristive

memristive (comparative more memristive, superlative most memristive)

more memristive (comparative)
most memristive (superlative)

(physics) Of or pertaining to a memristor; exhibiting memristance.


calamitic

calamitic (comparative more calamitic, superlative most calamitic)

more calamitic (comparative)
most calamitic (superlative)

(chemistry) Describing rod-shaped liquid crystals


memristor

Blend of memory + resistor, coined by Leon O. Chua in 1971.

According to Kumar, memristor inventor Leon Chua predicted that if you mapped out the possible device parameters there would be regions of chaotic behavior in between regions where behavior is stable.

2020 October 1, Samuel K. Moore, “Memristor Breakthrough: First Single Device To Act Like a Neuron”, in IEEE Spectrum:

electrical resistance
electrical resistance

(physics) A passive electrical element in which the electrical resistance is proportional to the integral of the electrical current between the terminals.


multimolecular

(chemistry, physics) Involving multiple molecules.


monotropic

(chemistry, physics) Describing any material that exists in multiple forms, only one of which is stable at all temperatures and pressures.


multiatomic

multiatomic (comparative more multiatomic, superlative most multiatomic)

more multiatomic (comparative)
most multiatomic (superlative)

(chemistry, physics) Involving multiple atoms


cybotactic

(physical chemistry) Describing the region around a solute molecule (the cosphere) in which the solvent molecules are more ordered

(physical chemistry) Describing an assembly of molecules in a nematic mesophase that is arranged in a short-range smectic-like array


disclination

en-noun

disclination (countable and uncountable, plural disclinations)

(physics) Any of several defects in rotational symmetry, especially in the orientation of the molecules of a liquid crystal; related to dislocation and dispiration.


electrohydrodynamic

(physics) Of or pertaining to electrohydrodynamics


thermomolecular

(chemistry, physics) Describing any of several effects of heat upon collections of molecules, or of the movement of molecules on the distribution of heat.


electrohydrodynamics

(physics) the study of the dynamics of electrically conducting fluid


nonchiral

(geometry, physical chemistry) Not chiral.


acyltransferase

/ˌeɪsʌɪlˈtɹɑːnzfəɹeɪz/

(biochemistry) Any of several transferase enzymes that catalyze the transfer of acyl groups between lipids.

asyylitransferaasi

any of several enzymes that catalyse the transfer of acyl groups between lipids


hexatic

(chemistry, physics) Describing several forms of liquid crystal that have in-plane short-range positional molecular order, weakly coupled two-dimensional layers and long-range bond orientational molecular order


energy transfer

energy transfer (countable and uncountable, plural energy transfers)

Solar panels allow for energy transfer from light energy to heat and electrical energy.

(physics) The conversion of one form of energy into another, or the movement of energy from one place to another.


dilatometry

dilatometry (usually uncountable, plural dilatometries)

(physics) The measurement of changes in volume that accompany some other physical phenomenon


compound machine

compound machine (plural compound machines)

(physics) Any combination of simple machines operating together.


tensile strain

tensile strain (countable and uncountable, plural tensile strains)

(physics) The relative elongation of a material when subjected to tension.


lipoxygenase

polyunsaturated fatty acid
polyunsaturated fatty acid

(biochemistry) Any of a class of enzymes that catalyse the oxidation of polyunsaturated fatty acids


electron gun

(physics) Any device that produces a stream of electrons, especially a narrow stream that is focused onto a phosphor screen.


cosmographer

/kɒzˈmɒɡɹəfə/

From cosmography + -er, corresponding to cosmo- + -grapher.

(astrophysics) A scientist specializing in understanding and describing the nature of the universe.


cryocondensation

(organic chemistry, physical chemistry) The use of very low temperatures to condense volatile (usually) organic compounds from the air or other gaseous medium.


PNS

PNS (countable and uncountable, plural PNSs)

proto-neutron star
proto-neutron star#English


pentosyltransferase

(biochemistry) Any glycosyltransferase that catalyzes the transfer of a pentose


xylosyltransferase

(biochemistry) Any glycosyltransferase that catalyzes the transfer of xylose.


electroanalysis

/ɪˌlɛktɹoʊəˈnælɪsɪs/

/ɪˌlɛktɹəʊəˈnælɪsɪs/

(physics, chemistry) Any of several electrochemical forms of analysis


faradaic

en-adj

faradaic (comparative more faradaic, superlative most faradaic)

more faradaic (comparative)
most faradaic (superlative)

From Faraday + -ic, after Michael Faraday, English chemist and physicist.

(physics) Of or pertaining to electricity, especially to electrical induction


electroactive

electroactive (comparative more electroactive, superlative most electroactive)

more electroactive (comparative)
most electroactive (superlative)

(physics, chemistry) describing any material (especially in a cell) that is electrically active or responsive

(physics, chemistry) describing any polymer that changes shape in the presence of an electric field


faradic

faradic (comparative more faradic, superlative most faradic)

more faradic (comparative)
most faradic (superlative)

From Faraday + -ic, for Michael Faraday, English chemist and physicist.

(physics) Of or pertaining to electricity, especially to electrical induction.


supermembrane

theories of everything
theory of everything

(mathematics, physics) A multidimensional membrane (a brane) posited in some theories of everything.


sabin

From Wallace Clement Sabine (1868-1919), US physicist.

Sabine gave his name to the sabin, the standard unit that is ‘equal to the sound absorption of a square foot of a perfectly absorbing surface such as an open window’.

2012 Sep, Rupert Christiansen, “Quiet, Please”, in Literary Review:

(acoustics) A unit of measurement that measures a material's absorbance of sound. A material that is 1 square meter in size that can absorb 100% of sound has a value of one metric sabin.


metacentre

From French métacentre or meta- + centre.

A ship's metacenter (M) is the virtual intersection of two successive lines of action of the force of buoyancy when the ship heels through a very small angle. The initial position of the metacenter is used as a reference in stability calculations. The distance from a ship's center of gravity (G) to its metacenter is known as the metacentric height (GM). GM is a measure of the vessel's ability to right itself when experiencing an overturning moment. For the same vessel, a higher GM value indicates a greater initial static stability.

2017 December 12, National Transportation Safety Board, “1.12 Stability Information - 1.12.1 Concepts”, in Marine Accident Report: Sinking of US Cargo Vessel SS El Faro, Atlantic Ocean, Northeast of Acklins and Crooked Island, Bahamas, October 1, 2015, archived from the original on 2022-05-15, page 132:

(physics, nautical) The point where a vertical line through a tilted vessel's center of buoyancy intersects the originally-vertical (but-now-tilted) line that passed through the center of buoyancy when the vessel was upright; it must be above the vessel's center of gravity for the vessel to have positive static stability (to tend to return to an upright orientation if rolled to one side, rather than to continue rolling to an inverted orientation).


supergroup

(physics) A generalization of groups, used in the study of supersymmetry.


polaritonics

(physics) The design and construction of devices employing polaritons.


silicatein

en-noun

silicatein (countable and uncountable, plural silicateins)

(biochemistry) An enzyme used by sponges to capture silicate and build silica nanostructures


unlistenable

en-adj

unlistenable (comparative more unlistenable, superlative most unlistenable)

more unlistenable (comparative)
most unlistenable (superlative)

Many older adults find rap music unlistenable.

'[…] you'd prefer some Stravinsky or Stockhausen. Something unlistenable.'

1997, Keith Topping, Martin Day, chapter 6, in The Devil Goblins from Neptune, page 69:

(music, acoustics) Of a sound quality or characteristic that a person cannot long listen to.


acoustic emission

en-noun

acoustic emission (plural acoustic emissions)

(uncountable, engineering, acoustics) A phenomenon wherein external stimuli such as mechanical loading generate physical vibrations.


cryptomorphic

Coined by Garrett Birkhoff before 1967, for use in the third edition of his book Lattice Theory.

Both have 'cryptomorphic' types which are similar in composition but in which no felspar has crystallized.

1925, The Mineralogical Magazine and Journal of the Mineralogical Society - Volume 20, page 309:

(crystallography) Composed of minerals that are not expressed in their crystalline form.


graticule

French, from Latin crāticula, diminutive form of crātis.

(specifically, optics, British) A reticle.


scalar field

(mathematics, physics) A function that assigns a scalar value to every point in space.


relativist

Rule-circular justifications of basic logical laws — if indeed they are possible — would presumably be similarly undismaying for a logical relativist.

2002, José ́Luis Bermúdez, Alan Millar, Reason and Nature: Essays in the Theory of Rationality, page 50:

One who follows, believes or espouses relativism.


vanadium bromoperoxidase

(biochemistry) A haloperoxidase, used by some algae to synthesize halogen compounds, that has a requirement for the element vanadium


haloperoxidase

(biochemistry) Any of a class of enzymes that oxidize organic halogen compounds; they are hemoproteins or similar


achirotopic

en-adj

achirotopic (comparative more achirotopic, superlative most achirotopic)

more achirotopic (comparative)
most achirotopic (superlative)


chirotopic

chirotopic (comparative more chirotopic, superlative most chirotopic)

more chirotopic (comparative)
most chirotopic (superlative)

(physical chemistry) Describing an atom (or group of atoms in a molecule) within a chiral environment


collapsar

Blend of collapse + star, patterned after quasar, pulsar. Analyzable as collapse + -ar

(astronomy) The black hole thought to form following the gravitational collapse of a massive star.


anchimeric

anchimeric (comparative more anchimeric, superlative most anchimeric)

more anchimeric (comparative)
most anchimeric (superlative)

(physical chemistry) Describing the participation of a neighbouring group in a reaction


antarafacial

(physical chemistry) Of a chemical reaction, involving two simultaneous changes in bonding to opposite faces of a common centre (or related centres) of a molecular fragment


anation

coordination compound
coordination compound

(physical chemistry) The replacement of a ligand (especially of water) by an anion in a coordination compound


critical angle

total internal reflection
total internal reflection

(optics) The angle of incidence beyond which light traveling through a medium experiences total internal reflection upon encountering a boundary with a less refractive medium.


hypernova

en-noun

hypernova (plural hypernovas or hypernovae)

(astronomy) The gravitational collapse of a massive star to form a black hole.

hipernova

the gravitational collapse of a massive star to form a black hole


anticlined

en-adj

anticlined (comparative more anticlined, superlative most anticlined)

more anticlined (comparative)
most anticlined (superlative)

(organic chemistry, physical chemistry) Describing two equivalent chains of a crystalline polymer having opposite orientation


neighbouring group

en-noun

neighbouring group (plural neighbouring groups)

(physical chemistry) A functional group that is in close proximity to another that is taking part in a reaction; especially such a functional group that affects the rate or outcome of the reaction


anchimeric assistance

anchimeric assistance (usually uncountable, plural anchimeric assistances)

neighbouring group participation
neighbouring group participation

(physical chemistry) A form of neighbouring group participation in which the rate of a reaction is increased


electron pair

(chemistry, physics) Two electrons having opposite spin but all other quantum numbers the same; i.e two electrons in the same atomic orbital or molecular orbital, especially such electrons that function in concert to form a covalent bond

kapid-dagisik

two electrons having opposite spin but all other quantum numbers the same


antiferroelectric

From anti- + ferroelectric or antiferro- + electric.

(physics) Describing a state in which dipoles are arranged antiparallel to adjacent ones, resulting in a net zero polarization


torsion angle

(physical chemistry) In a chain of atoms A-B-C-D, the dihedral angle between the plane containing the atoms A,B,C and that containing B,C,D


axialite

(physical chemistry) A multilayer aggregate of lamellar crystals spreading out from a common edge


autopoisoning

(chemistry) The inhibition of a catalyst by the product of the catalysis.


antiperiplanar

(physical chemistry) Describing a torsion angle between 150° and 180°

antiperiplanar

describing a torsion angle between 150° and 180°


atactic

en-adj

atactic (comparative more atactic, superlative most atactic)

more atactic (comparative)
most atactic (superlative)

(chemistry) Describing any regular polymer or other macromolecule in which the orientation of the subunits is random.


carbynium

(organic chemistry) The radical cation H₂C^(.+) or any organic derivative of it


catalymetric

(chemistry) Describing an analysis that involves a catalyst; especially a titration in which the end-point is detected by a sudden change in the rate of reaction


carbonium

(dated, deprecated) Any of several organic cations; carbocation or carbenium.


chiroptic

chiroptic (comparative more chiroptic, superlative most chiroptic)

more chiroptic (comparative)
most chiroptic (superlative)

(physical chemistry, physics) Describing any of the optical techniques for investigating chiral substances


chemical flux

(physical chemistry) The amount of substance per unit volume, per unit time transformed in a reaction


energetics

(physics, chemistry) The field of study focused on the flow and transformation of energy.


plasmin

en-noun

plasmin (countable and uncountable, plural plasmins)

(biochemistry) A proteolytic enzyme that dissolves the fibrin in blood clots.


coacervate

/kəʊəˈsɜːvət/

(biochemistry, physical chemistry, organic chemistry) The microsphere droplet that results from coacervation.


cosphere

(physical chemistry) A cybotactic region of a solution.


deshielding

(physics, chemistry) The situation, in NMR spectroscopy, in which a local magnetic field is strengthened by the presence of neighbouring nuclei


diisotactic

en-adj

diisotactic (comparative more diisotactic, superlative most diisotactic)

more diisotactic (comparative)
most diisotactic (superlative)

(physical chemistry) Describing an isotactic polymer having two chiral atoms in its repeat unit


electrocapillarity

(physics, chemistry) the effect of electric charge on surface tension


electrocapillary

electrocapillary (comparative more electrocapillary, superlative most electrocapillary)

more electrocapillary (comparative)
most electrocapillary (superlative)

(physics, chemistry) of or pertaining to electrocapillarity


electromigration

en-noun

electromigration (countable and uncountable, plural electromigrations)

(physics) the transport of small particles under the influence of an electric charge; the separation of ions of isotopes by this method


electrokinetic

(physics) Describing any of several phenomena in which electric charge causes movement

(physics) Describing the heating effect of an electric current


electrodecantation

(chemistry, physics) a technique for the separation of the constituents of colloids (sols) using a combination of electrodialysis and gravity


electroviscous

en-adj

electroviscous (comparative more electroviscous, superlative most electroviscous)

more electroviscous (comparative)
most electroviscous (superlative)

(physics, chemistry) Describing the effects of electric charge on viscosity


enthalpimetric

enthalpimetric (comparative more enthalpimetric, superlative most enthalpimetric)

more enthalpimetric (comparative)
most enthalpimetric (superlative)

(chemistry, physics) Describing any of several forms of calorimetric analysis in which the enthalpy change during a reaction is measured


epicadmium

(physics) Used attributively to describe kinetic energies above that at which cadmium has a large neutron cross section


enthalpimetry

en-noun

enthalpimetry (usually uncountable, plural enthalpimetries)

(chemistry, physics) Any of several forms of calorimetric analysis in which the enthalpy change during a reaction is measured.


enthalpogram

(chemistry, physics) A graph of enthalpy or temperature versus time during a reaction; especially one used in enthalpimetry.


epithermal

en-adj

epithermal (comparative more epithermal, superlative most epithermal)

more epithermal (comparative)
most epithermal (superlative)

(physics) Describing neutrons of kinetic energy greater than that of thermal motion


euatmotic

(physics) Describing the isothermal, reversible interaction of two solid phases to produce a vapour phase when heated


fluorimetry

en-noun

fluorimetry (usually uncountable, plural fluorimetries)

(chemistry, physics) fluorescence spectroscopy


halonium

(organic chemistry) Any cation of the form R₂X⁺, in which X is a positively-charged halogen


heterotactic

en-adj

heterotactic (comparative more heterotactic, superlative most heterotactic)

more heterotactic (comparative)
most heterotactic (superlative)

(physical chemistry, of a polymer) Having substituents arranged in a random configuration in each repeat unit


MFM

en-noun

MFM (countable and uncountable, plural MFMs)

magnetic force microscopy
magnetic force microscopy#English

(microscopy) Initialism of magnetic force microscopy.


pseudogap

(physics) An energy level that has few electronic states associated with it


hypersatellite

(physics) A weak line in an X-ray spectrum close to a normal line


illuminance

illuminance (countable and uncountable, plural illuminances)

(physics) The luminous flux incident on unit area of a surface; measured in lux or lumens.


focal depth

(optics) The field of view of a camera that is in sharp focus.


directivity

directivity (countable and uncountable, plural directivities)

electrical engineering
electrical engineering

(physics, electrical engineering) A measure of the performance of an antenna compared to an isotropic antenna; the ratio of the maximum value of radiation intensity to the average radiation intensity.


iminylium

(organic chemistry, especially in combination) Any of a class of univalent cations derived from an imine R₂C=N⁺


iminium

(organic chemistry) A form of quaternary ammonium cation derived from an imine, R₂C=N⁺R₂.


intraphase

en-adj

intraphase (comparative more intraphase, superlative most intraphase)

more intraphase (comparative)
most intraphase (superlative)


isoentropic

(chemistry, physics) Describing a series of reactions in which each step has the same entropy of activation

isoentropico

a series of reactions with the same entropy of activation


isorefractive

(physics) Having the same refractive index


specific volume

en-noun

specific volume (plural specific volumes)

(physics) The volume of unit mass of a substance; the reciprocal of density


isosteric

(physics) Having constant specific volume over time or space


magnetizability

magnetizability (countable and uncountable, plural magnetizabilities)

magnetic flux density
magnetic flux density

(countable, physics) A measure of the extent to which something is magnetizable; specifically the tensor quantity relating the induced magnetic moment to the applied magnetic flux density


lyase

(biochemistry) Any of many classes of enzyme that catalyze the breaking of a specific form of bond


lyonium

Any cation formed by addition of a hydron (proton) to a solvent molecule


metamagnetic

en-adj

metamagnetic (comparative more metamagnetic, superlative most metamagnetic)

more metamagnetic (comparative)
most metamagnetic (superlative)

(physics) Describing the transition from an antiferromagnetic to a ferromagnetic state


martensitic

martensitic (comparative more martensitic, superlative most martensitic)

more martensitic (comparative)
most martensitic (superlative)

(physics, chemistry) Of or relating to a diffusionless transition of one crystal structure to another generated by coordinated atomic, ionic or molecular displacements over small distances (first studied in the mineral).


microcanonical

(physics) Describing any closed system of constant volume which is thermally isolated from its surroundings, and whose total energy is constant and is known


martensite

(physics, chemistry) Any crystal structure formed by a martensitic transition


atom smasher

So called because it causes atoms to collide at high speeds.

particle accelerator
particle accelerator


microphotometer

(physics) Any of various photometers used either to measure the variation of densities over small areas, or to measure accurately small changes in illumination.


multipole

(physics) Any of a several forms of static or oscillating distributions of charge or magnetization


multienzyme

(biochemistry) Any protein having two or more catalytic functions


nitrilium

(organic chemistry) Any cation formed by protonation of a nitrile; R-C≡N⁺H or R-C⁺=NH


positon

(physics) A positron, especially when compared with a negaton


negaton

(physics) A normal, negatively-charged electron, especially in comparison with a positon


oxylium

(chemistry) Any cation such as H-O⁺ or R-O⁺


orthokinetic

orthokinetic (comparative more orthokinetic, superlative most orthokinetic)

more orthokinetic (comparative)
most orthokinetic (superlative)

(physics) Describing any property related to the kinetic energy imparted by collisions with other bodies


perikinetic

(physics) Describing any property related to the probability of cohesion during collisions with other bodies


phenonium

(organic chemistry) Any of a class of arenium ions in which a cyclohexadienyl cation is spiro-annulated with a cyclopropane unit.


phosphoroscope

(physics, chemistry) Any of several devices used to measure phosphorescence, and to distinguish it from fluorescence


photodesorption

(physics, chemistry) An increase in the desorption of a substance from an interface in the presence of light.


photoelectrolytic

(physics) Describing a cell in which radiant energy causes a chemical reaction.


pulsatance

en-noun

pulsatance (countable and uncountable, plural pulsatances)

(physics) angular frequency (in radians per second)


rotameter

(physics) A device used to measure fluid flow, in which a float rises in a tapered vertical tube to a height dependent on the rate of flow through the tube


radioenzymatic

(biochemistry) Describing any investigation into an enzyme by the use of a radioactive substrate.


radiorelease

(chemistry) The release of a radioactive substance during a chemical reaction.


radioiodination

radioiodination (countable and uncountable, plural radioiodinations)

(chemistry) The incorporation of any radioiodine into a compound or tissue.


pseudomolecular

(chemistry, physics) Having some characteristics of molecules


radiogravimetric

en-adj

radiogravimetric (comparative more radiogravimetric, superlative most radiogravimetric)

more radiogravimetric (comparative)
most radiogravimetric (superlative)

(chemistry) Describing a form of gravimetric analysis in which the radioactivity of a product is measured instead of its mass


photopeak

(physics) That part of the gamma ray spectrum of a material caused by the photoelectric effect


ratemeter

(physics) Any of several devices that measure the average rate of radioactive emissions over a specified time interval.


solvophobic

solvophobic (comparative more solvophobic, superlative most solvophobic)

more solvophobic (comparative)
most solvophobic (superlative)

(physics, chemistry) lacking an affinity for a specific solvent; unable to absorb, or be wetted by a solvent


rheopexy

From rheo- (“current”) + -pexy (“fixing (in place)”).

confix

(physics) A rheological phenomenon in which certain colloids solidify more quickly when subjected to shear


physisorption

en-noun

physisorption (countable and uncountable, plural physisorptions)

Otherwise, in the case of pure physisorption, adatoms and very small adclusters would not be observed with the STM because the probability for the sharp eigenstates of the adparticles to lie within the 10 meV energy window ( given by the bias voltage ) would be considerably small.

(physical chemistry) adsorption in which the forces involved are intermolecular rather than chemical


photoadsorption

photoadsorption (countable and uncountable, plural photoadsorptions)

(physics, chemistry) An increase in the adsorption of a substance at an interface in the presence of light.


protide

From proto- + -ide. From protium, from Ancient Greek πρῶτος (prôtos, “first”).

(physics, chemistry) The normal hydride ion using protium.


HCI

HCI (countable and uncountable, plural HCIs)

(physics, chemistry) Initialism of highly charged ion.


thermomagnetometry

(physics, chemistry) The measurement of the magnetic properties of a material as it is heated in a controlled manner


thermodilatometry

(physics) The measurement of the dimension of a sample when heated in a controlled manner


thermosonimetry

(physics, chemistry) The measurement of the sound emitted by a material as it is heated in a controlled manner.


thermoelectrometry

(physics, chemistry) The measurement of the electrical characteristics of a substance as it is heated in a controlled manner


thermoacoustimetry

(physics, chemistry) The study of the effects of rising temperature on the acoustic properties of materials


thermoptometry

(physics, chemistry) The measurement of the optical properties of a material as it is heated in a controlled manner.


thermogravimetry

(physics, chemistry) The measurement of the mass of a material as it is heated in a controlled manner.


thermomechanometry

(physics, chemistry) The measurement of the mechanical properties of a material as it is heated in a controlled manner.


thermomechanical

(physics) Of or pertaining to the variation of the mechanical properties of a material with temperature.


volumic

(physics) Describing any measure obtained by dividing a physical quantity by a volume


Vmp

By taking many readings, we determined the Vmp to a high degree of accuracy.

(electricity) Initialism of voltage at maximum power; used when analysing solar panels.


contactee

He believes the contactees (those who claim to have actual contact with beings from outer space) are actually creating a new theology.

1966 May 11, “Harvard Astronomers Claim UFO's Are Based on Illusion and Religion”, in Harvard Crimson:

The “contactees” or “saucerians” surfaced in 1952 in southern California. They presented themselves as selected by superior beings from other planets for a special assignment—save the world.

2001, David A. Clary, Before and After Roswell, page 63:

(ufology, dated) A person who has been contacted by alien beings from outer space.


QSS

quasi-stellar source
quasi-stellar radio-source#English

(astronomy, obsolete) Initialism of quasi-stellar source.


QSR

quasi-stellar radio-source
quasi-stellar radio-source#English

(astronomy) Initialism of quasi-stellar radio-source.


scallop theorem

scallop theorem (plural scallop theorems)

From an explanation of a principle of fluid dynamics given by E. M. Purcell.

(fluid dynamics) A theorem which states that to achieve propulsion at low Reynolds number in simple (i.e. Newtonian) fluids, a swimmer must deform in a way that is not invariant under time-reversal.


QSO

quasi-stellar object
quasi-stellar object#English

Initialism of quasi-stellar object. (a quasar)


AGN

AGNs (plural)
AGNe (plural)
AGNi (plural)

active galactic nucleus
active galactic nucleus#English


trilling

Diametrically opposed rays of these stellate groups are of the same optical orientation and the twins are, therefore, trillings ( fig. 29 ).

1966, Geological Survey Professional Paper - Issues 509-510, page 55:

Chrysoberyl is orthorhombic in symmetry. Like many orthorhombic minerals, it readily forms an intergrowth with two other individual crystals to make trillings with six sides or, at least, V-shaped twins.

1974, Mineral Digest, volumes 6-8, page 148:

In the embryonic stage, pseudohexagonal trillings resemble those of the post-embryonic stage (Figure 2D,E), and are 1 to 3 μm in diameter.

2013, Federico Olóriz, Francisco J. Rodríguez-Tovar, Advancing Research on Living and Fossil Cephalopods, page 235:

(crystallography) A compound crystal consisting of three individuals.


Hamiltonian

(physics, Hamiltonian mechanics) A function (of time), denoted H, that corresponds to the total energy of the system.

(physics, quantum mechanics) The observable, denoted H, that corresponds to the total energy of the system.


radiohalogenation

radiohalogenation (countable and uncountable, plural radiohalogenations)

(chemistry, physics) The labelling of a material with a radiohalogen.


parton

Coined by American physicist Richard Feynman in 1969, from part + -on.

coin

(physics, dated or historical) Any of the constituent particles making up a compound particle, e.g. the quarks and gluons which make up hadrons.


radiometal

Any radioactive isotope of a metal, especially one used as a biochemical label


radiopure

en-adj

radiopure (comparative more radiopure, superlative most radiopure)

more radiopure (comparative)
most radiopure (superlative)


radiophysics

(physics) The physics of ionizing radiation


radiohalogen

(chemistry, physics) Any radioactive isotope of a halogen


radioscan

A scan for the presence of radioactive material in a sample; especially for a radioactive tracer in an organ


physical quantity

en-noun

physical quantity (plural physical quantities)

(physics) A physical property that can be measured or calculated from other physical property and expressed as the product of a numerical value and a physical unit.


point mass

(classical mechanics) A theoretical point with mass assigned to it.


HzRG

(astronomy) Initialism of high-redshift radio galaxy.


BLRG

(astronomy) broad emission-line radio-galaxy


magnetosonic

(physics) Describing a longitudinal wave of ions (and electrons) in a magnetized plasma that propagates perpendicular to the stationary magnetic field.


velocimetry

(physics) The measurement of the velocity of fluids


RIQ

(astronomy, initialism) Radio-intermediate quasar.


RQQ

(radio astronomy) Initialism of RadioQuiet Quasar.


BLQ

(astronomy) Abbreviation of broad emission-line quasar.


NLQ

near letter-quality
near letter-quality#English

(typography, computing) Initialism of near letter-quality.


radiation physics

(physics) The study of the effects of ionizing radiation on matter, and of its measurement

fisic radaíochta

the study of the effects of ionizing radiation on matter


detuning

detuning (countable and uncountable, plural detunings)

(physics) The difference between actual frequency and resonance frequency.


radiobismuth

Any radioactive isotope of bismuth, especially when used in metabolic studies


cycler

We took samples from the tubes in the cycler at regular intervals

(biochemistry) Ellipsis of thermal cycler.; a machine for creating multiple copies of DNA sequences.


adlayer

(physical chemistry) An adsorbed layer; in surface chemistry, a layer that is chemically interacting with the substrate.


permanent wave

(physics) A wave in a moving fluid that does not change shape or position relative to the fluid

seisova aalto

physics: wave that does not change shape


disconnector

(electrical engineering) A switching device used to open an electric circuit when there is no current through it. They are used to isolate a part of an electrical system to allow the maintenance staff a safe access to it.


s-band

(physics) An ultrahigh radio frequency, one within the range of 1,550 to 5,200 MHz.


cuproenzyme

(biochemistry) Any metalloenzyme that contains one or more copper atoms


defocus

Fundamental to the concept of recovering the depth by measuring defocus is the relationship between the focused and the defocused images of a scene.

2012, Subhasis Chaudhuri, A. N. Rajagopalan, Depth From Defocus: A Real Aperture Imaging Approach, page 16:

(optics) The distance by which the focal point is in front of (positive defocus) or beyond (negative defocus) the image or target surface.


warp speed

The ship was accelerating to warp speed, when one of the engines failed.

(science fiction) A hypothetical, extremely rapid, speed, resulting from entering a separate dimension, termed hyperspace; much faster than the speed of light.


fusion bomb

An atomic bomb that uses nuclear fusion as a source of energy; a hydrogen bomb


syntaxis

syntaxis (countable and uncountable, plural syntaxes)

From the Late Latin syntaxis, from the Ancient Greek σύνταξις (súntaxis). Doublet of syntax.


tryptophan synthetase

(biochemistry) An enzyme found in plants and bacteria, but not in animals, which catalyses the final step in the biosynthesis of tryptophan.


integrase

(biochemistry) Any enzyme that integrates viral DNA into that of an infected cell


primase

(biochemistry) An RNA polymerase involved in the initiation of DNA synthesis.


superlens

(physics) Any of several lenses, often built using material with negative refractive index, that can resolve images having dimensions less than that of the wavelength of light used.

(physics) A kind of compound lenslet array system.


convertase

(biochemistry) Any of several enzymes that convert a compound into smaller, biologically-active compounds


microquasar

(astronomy, stars) A high-energy binary star system that includes black hole or neutron star and which resembles a quasar.


furin

furin (countable and uncountable, plural furins)

(biochemistry) A protease found in certain animal cells


Planck temperature

Planck temperature (plural Planck temperatures)

Named after German physicist Max Planck.

(physics) The fundamental upper limit of temperature conceivable under current models of physics, in which all matter is accelerated as quickly as possible to the speed of light, approximately 1.41679 × 10³² kelvins.


delta-v

(physics) A vector change in velocity, especially a small change as a result of a corresponding change in some other parameter.


astrodynamics

The study of the motion of rockets and spacecraft, usually from Newton's laws of motion, Newtonian gravity, and Kepler's laws


exoenthalpic

en-adj

exoenthalpic (comparative more exoenthalpic, superlative most exoenthalpic)

more exoenthalpic (comparative)
most exoenthalpic (superlative)

(physics) In which enthalpy increases; exothermic.


endoenthalpic

endoenthalpic (comparative more endoenthalpic, superlative most endoenthalpic)

more endoenthalpic (comparative)
most endoenthalpic (superlative)

(physics) In which enthalpy decreases; endothermic


radium dial

The dial of a watch or clock on which the hours have been marked with a radium compound to make them luminous


spectropolarimeter

(optics) A device for measuring the optical properties of polarized light.


azimuthal quantum number

en-noun

azimuthal quantum number (plural azimuthal quantum numbers)

(physics) The quantum number that represents the angular momentum of an atomic orbital.


ufological

en-adj

ufological (comparative more ufological, superlative most ufological)

more ufological (comparative)
most ufological (superlative)


reemit

en-verb

reemit (third-person singular simple present reemits, present participle reemitting, simple past and past participle reemitted)

reemits (present singular third-person)
reemitting (participle present)
reemitted (participle past)
reemitted (past)

(transitive, physics) To emit something (especially radiation) that has previously been absorbed.


electrolyze

electrolyze (third-person singular simple present electrolyzes, present participle electrolyzing, simple past and past participle electrolyzed)

electrolyzes (present singular third-person)
electrolyzing (participle present)
electrolyzed (participle past)
electrolyzed (past)

Coined by Scientist Michael Faraday in 1834.

coin

To decompose by means of, or as a result of electrolysis.


Barlow

From Old English bere (“barley”) + hlǣw (“hill”) or lēah (“wood, clearing”).


trifocal

(optics) Of or pertaining to corrective lenses that have three different powers per eye.


amplitude spectroscopy

(physics) The analysis of the energy level structure of a quantum system through its response to driving-field amplitude rather than frequency


galactic year

(astronomy) The time taken for the Solar System to orbit around the center of the Milky Way Galaxy, estimated to be from 225 to 250 million years.


sneutrino

(physics) A hypothetical boson superpartner of a neutrino whose existence is implied by supersymmetry


vector boson

(physics) Any of a family of gauge bosons having a spin quantum number of one.


pseudoscalar

(physics) A quantity that behaves like a scalar, but changes sign under a parity inversion


slepton

(physics) A hypothetical boson superpartner of a lepton whose existence is implied by supersymmetry.


smuon

(physics) A hypothetical boson superpartner of a muon whose existence is implied by supersymmetry


selectron

(physics) A slepton which is the hypothetical supersymmetric partner of an electron.


cluster state

(physics) Any of a subset of graph states that can be fitted to a regular cubic lattice


graph state

(physics) Any of a class of multipartite entangled quantum states that can be interpreted using the mathematics of graph theory


multipartite

(physics) Describing a system of three or more quantum states


LHC

Coordinate term: FCC

Large Hadron Collider
w:Large Hadron Collider

(particle physics) Initialism of Large Hadron Collider.

Didysis hadronų priešpriešinių srautų greitintuvas


particle beam

(physics) A beam of atoms, ions or subatomic particles that has been accelerated by some device and collimated by magnets and/or electrostatic lenses


USO

HOW AM I SUPPOSED TO SUPPORT THE TROOPS IF I CAN’T REGALE THEM WITH TALES OF WHOREPUNCHING AND SKULLFUCKING? THREE WORDS: INDIETITS USO SHOW

2007, Jeph Jacques, Indietits: SUPPORT OUR TROOPS:


preaccelerator

(physics) Any accelerator that accelerates particles and feeds them to a larger accelerator for further acceleration

preacceleratore

accelerator which feeds a larger accelerator


pointlike

en-adj

pointlike (comparative more pointlike, superlative most pointlike)

more pointlike (comparative)
most pointlike (superlative)

(physics) Having dimensions too small to be measured, or so small that it may be regarded as a point


ultraheavy

ultraheavy (comparative more ultraheavy, superlative most ultraheavy)

more ultraheavy (comparative)
most ultraheavy (superlative)

(physics, chemistry) Describing any atom that has a very large atomic weight; especially those that lie beyond fermium in the periodic table


radiodiagnosis

en-noun

radiodiagnosis (countable and uncountable, plural radiodiagnoses)

(medicine) diagnosis by means of X-rays or radiochemical tracers


transfermium

(physics, chemistry) Describing any element that lies beyond fermium in the periodic table; having an atomic number greater than 100.


fractionating column

fractionating column (plural fractionating columns)

fractional distillation
fractional distillation

(physics, chemistry) An apparatus for the separation of the volatile components of a liquid by means of fractional distillation, sometimes accompanied by selective adsorption


antiatom

(particle physics) An antiparticle composed of antiprotons, antineutrons, and positrons. An antimatter equivalent of the atom.

反原子

antimatter equivalent of atom made up of antiparticles


theoretical plate

theoretical plate (plural theoretical plates)

fractionating column
fractionating column

(physics, chemistry) A plate or tray in a distillation column that produces the best possible difference between the liquid and vapour phases in equilibrium with it; the equivalent concept in a fractionating column packed with beads or rings


sub-light

"We are about to test sub-light engine disengage."

2017, A.K. Brown, Humans on the Menu (Champagne Universe Series: Book 2), page 36:

(science fiction) At less than the speed of light.


parent nuclide

(physics) the nuclide whose radioactive decay product is a specific daughter nuclide


daughter nuclide

daughter nuclide (plural daughter nuclides)

(physics) a nuclide (often one of several) that is the product of the radioactive decay of a specific parent nuclide


antired

(particle physics) One of the three possible colours of an antiquark, corresponding to red in a quark.

antirouge

one of the three possible colours of an antiquark


antigreen

(physics) One of the three possible colours of an antiquark, corresponding to green in a quark.