polarity

en-noun

polarity (countable and uncountable, plural polarities)

polaritat

chemistry: dipole-dipole intermolecular force

(electricity) A measure of the electrical potential at the ends of a circuit. ᵂᵖ


reluctance motor

reluctance motor (plural reluctance motors)

an alternating current motor with a stator winding like that of an induction motor and a rotor that has projecting poles of ferromagnetic material


tracking

tracking (countable and uncountable, plural trackings)

(electricity) The synchronization of two or more signals.

(electricity) The formation of conductive paths on the surface of an insulating material due to electrical discharges.


photoelectric cell

photoelectric cell (plural photoelectric cells)

A transducer that generates an electric current proportional to the light intensity.


photoconductivity

photoconductivity (countable and uncountable, plural photoconductivities)

electromagnetic radiation
electromagnetic radiation

(physics) The increase in the electrical conductivity of a material as a result of incident electromagnetic radiation.

фотопроводимост

an increase in the electrical conductivity of a material as a result of incident electromagnetic radiation


photocurrent

Any electric current that flows as a result of photoconductivity or the photovoltaic effect


electric chair

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The current path in an electric chair is from a scalp electrode to a calf electrode. The current is therefore passing the brain and the brain stem, the lung and the heart. It is believed that the person becomes unconscious immediately after current onset, but it is well known that death is not immediate. The electric chair was used for the first time in 1890, and the first jolt was with 1400 V 60 Hz applied for 17 seconds, which proved insufficient.

2000, Sverre Grimnes, Ørjan Grøttem Martinsen, Bioimpedance and Bioelectricity Basics, →ISBN, page 309:

The electric chair has always been linked to Sing Sing.

2003, Guy Cheli, Sing Sing Prison, →ISBN:

The Death House was Trenton State Prison's official name for the brick and concrete vault where condemned men lived in tiny cells and an electric chair stood hard against a nearby wall.

2013, James S. Hirsch, Hurricane: The Miraculous Journey of Rubin Carter, →ISBN, page 1:

A chair-like device used for performing execution by electrocution.


ammeter

The controllers of these diesels do not move round in notches, so that the driver's only sure guide to the way in which he is working his locomotive is his ammeter, corresponding in a way to the steam-chest pressure gauge of a steam locomotive. When the diesel was being worked full out, the ammeter normally showed about 1,500-1,600 amps, with occasional surges of current at starting or up the steepest gradients to 1,700 or even 1,800 amps.

1959 March, Cecil J. Allen, “Locomotive Running Past and Present”, in Trains Illustrated, pages 131–132:

A device that measures the magnitude of an electric current, especially one calibrated in amperes.

ampèremeter

device that measures an electric current

மின்னோட்டமானி

miṉṉōṭṭamāṉi


alternator

electrical engineering
electrical engineering

(electrical engineering) An electric generator which produces alternating current through mechanical means.

alternadore

an electric generator which produces alternating current


drift space

The space in an electron tube in which there is no modulated field


space charge

(electricity) The localized excess electric charge in a specific volume; especially such a negative charge


space cloth

(engineering) A partially conductive cloth or sheet, especially one whose resistance matches the impedance of free space (377 ohms per square).


space power system

space power system (plural space power systems)

Any assemblage of equipment used to generate, store and distribute electrical power on board a satellite or spacecraft


implicant

(electrical engineering) On a Karnaugh map: a set of ones (whose quantity is a power of two) which are related by adjacency (i.e., the set is connected, if the Karnaugh map is considered to be a graph which "wraps around" its edges, like a torus; and all elements of the subgraph induced by the set have the same degree). Equivalently, in terms of Boolean algebra, a product term which, when true, always implies that the given Boolean function is true.


APG

Austrian Power Grid
w:de:Austrian Power Grid

(electricity) Abbreviation of Austrian Power Grid.


fulgurant

en-adj

fulgurant (comparative more fulgurant, superlative most fulgurant)

more fulgurant (comparative)
most fulgurant (superlative)

Resembling a lightning flash; fulgurous.


spark gap

A gap, between two electrical terminals, across which sparks are generated.


electroplating

Near-synonym: electrodeposition

A process of coating the surfaces of a metal object with a layer of a different metal through electrochemical means, usually to exploit different properties of the materials.


electrologist

A person who uses electrolysis to remove body hair.


electroplate

en-noun

electroplate (countable and uncountable, plural electroplates)

The layer of metal deposited in the course of electroplating.


power supply

A source of power such as the mains or a generator.


galvanic

en-adj

galvanic (comparative more galvanic, superlative most galvanic)

more galvanic (comparative)
most galvanic (superlative)

From French galvanique, named after Italian physiologist Luigi Aloisio Galvani (1737–1798) + -ique.

named-after

Physicians used galvanic currents, which required only a galvanic power source, and faradic treatments, which utilized an "alternating" induction coil.

2005, Carolyn Thomas de la Pena, chapter 3, in The Body Electric: How Strange Machines Built the Modern American:

Of a current that is not alternating, as opposed to faradic.


Bunsen pile

(physical chemistry) An early electrical battery using multiple cells of zinc and graphite in dilute chromic acid


Bunsen cell

(physical chemistry) An early electrical battery using zinc and graphite in dilute chromic acid


lossless

en-adj

lossless (comparative more lossless, superlative most lossless)

more lossless (comparative)
most lossless (superlative)

LL-Q1860 (eng)-Flame, not lame-lossless.wav

Free from loss, especially not losing electrical energy or force.


substation

The utility now wants the network to be undergrounded in the urban areas, which would mean substations with 33 kV distribution swtichgear.

2006, Janes Northcote-Green, Robert Wilson, “Design, Construction and Operation of Distribution Systems, MV Networks”, in Control and Automation of Electrical Power Distribution Systems, CRC Press, →ISBN, page 110:

Meanwhile, an upgraded power supply at Sundon substation, between Leagrave and Harlington, will be commissioned concurrent with the overhead line connection and will be sufficient to power the initial electrified Corby services.

2019 October 13, Philip Sherratt, “Midland Main Line upgrade presses on”, in Modern Railways, page 62:

A site where electricity supplied by long-distance (high-voltage) transmission lines is transformed or regulated for local (low-voltage) distribution.


electron tube

(electricity) Any of several electronic devices that control electron current through vacuum, gas or vapor between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used.


immunisation

en-noun

immunisation (countable and uncountable, plural immunisations)

From French immunisation. Equivalent to immunise + -ation or immune + -isation.

"Secondly, we have to find more cost-effective ways of electrifying. And we've had a real breakthrough in the last couple of years in terms of bridge clearances and immunisation, meaning we've been able to take hundreds of millions of pounds off the cost of electrification.

2020 May 20, Andrew Haines talks to Stefanie Foster, “Repurpose rail for the 2020s”, in Rail, page 33:

(rail transport, electrical engineering) The process of immunising signalling and traction power supplies so they don't interfere with each other.


ball lightning

ball lightning (usually uncountable, plural ball lightnings)

A short-lived glowing ball sometimes observed to float in the air and thought to consist of ionized gas associated with thunderstorms.

llamp en bola

a short-lived, glowing ball sometimes observed to float in the air


circuit breaker

circuit breaker (plural circuit breakers)

From the evidence of witnesses and of the recorded passing times, including the time at which the circuit breakers were tripped when the wires were brought down, the train was travelling at a speed of not less than 70 m.p.h.

1961 November, “Talking of Trains: Derailment near Holmes Chapel”, in Trains Illustrated, page 652:

Typically traction packages monitor the supply frequency and if it strays outside pre-set limits open the circuit breaker between the pantograph and the transformer to shut off the power.

2019 October, Roger Ford, “Power failure highlights specification confusion”, in Modern Railways, page 27:

(electricity) An electrical switch capable of opening and closing an electrical circuit in all operating conditions, including fault situations.

overcurrent protective device
overcurrent protective device

(electricity) More specifically, a circuit breaker that automatically breaks overcurrent conditions; a type of overcurrent protective device.

interruttore magnetotermico

specific type of overcurrent protective device


grounding

grounding (countable and uncountable, plural groundings)

(electrical engineering) The interconnecting metal chassis/frame of a device, appliance, machine, or metal raceway via a designated conductor to earth at the service panel. It may be bare or covered, and does not carry current in normal operation.

maadoitus

electrical engineering: interconnection of metal chassis of a device to earth


interrupting time

interrupting time (countable and uncountable, plural interrupting times)

(electricity, of a circuit breaker) The time between the trip circuit energization and power arc interruption.


single-phasing

(electrical engineering) The abnormal operation of a three-phase machine when its supply is changed by the accidental opening of one conductor.


no-load

(electricity) Not supplying power; open-circuited.


ionization energy

ionization energy (plural ionization energies)

(physical chemistry, physics) The energy needed to remove an electron from an atom or molecule to infinity


polyphase

en-adj

polyphase (comparative more polyphase, superlative most polyphase)

more polyphase (comparative)
most polyphase (superlative)

In the past there had been several attempts to embody in locomotives some form of rotating machine to convert single-phase a.c. at supply frequency to polyphase a.c. at variable frequency, in order to achieve the necessary variable speed characteristic.

1963 November, “British achievements in electric traction”, in Modern Railways, page 313:

(electricity) Of, pertaining to, or involving multiple alternating currents that have the same frequency but differ in phase.

многофазен

of, pertaining to, or involving multiple alternating currents


power trip

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A power trip has shut down production from the Ophir field offshore Malaysia, according to a report by energy portal OffshoreEnergyToday.com.

2018 January 9, Surin Murugiah, “Power trip shuts down Ophir field offshore Malaysia, says report”, in The Edge Markets, retrieved 2023-08-17:

A power trip is when the circuit breakers in your house cut off power in one area or the entirety of your house.

(Malaysia, Singapore) A power outage or a blackout, when an electrical device or system suddenly stops working.


fulgurite

Glass formed by a lightning strike melting sand or other material.


base metal

en-noun

base metal (countable and uncountable, plural base metals)

electrochemical series
electrochemical series

(electrochemistry) Any metal at the lower end of the electrochemical series that oxidizes readily.


electrochemical series

electrochemical series (plural electrochemical series)

(electrochemistry) A list of the metals in order of their electronegativity (and hence their reactivity).


electrochemistry

(chemistry) The science of the chemistry associated with the flow of electricity, especially at the surface of an electrode.


MICTOR

(electrical engineering, microelectronics) Acronym of matched impedance connector.


arsenite

(inorganic chemistry) Any oxyanion of trivalent arsenic, especially the AsO₃³⁻ anion (or protonated derivatives); any salt containing this anion, or any ester of arsenious acid


pertechnetate

(inorganic chemistry) The univalent technetium anion TcO₄⁻; any salt containing this anion


decomposition potential

decomposition potential (plural decomposition potentials)

In electrolysis, the electrode potential at which current begins to increase appreciably, and electrolysis occurs.


triboelectric

(physics) Electrical charge transfer due to sliding or contact.

tribo-électrique

electrical charge transfer due to sliding or contact


blow a fuse

en-verb

blow a fuse (third-person singular simple present blows a fuse, present participle blowing a fuse, simple past blew a fuse, past participle blown a fuse)

blows a fuse (present singular third-person)
blowing a fuse (participle present)
blew a fuse (past)
blown a fuse (participle past)

LL-Q1860 (eng)-Flame, not lame-blow a fuse.wav

(electricity) To overload a circuit sufficiently that a fuse protecting it melts away (or informally a circuit breaker trips), stopping current from flowing.

faire sauter les plombs

to cause an electrical circuit to break open by overloading it


net metering

An electricity billing arrangement where excess energy (especially renewable energy) generated by an electricity consumer is credited towards their future consumption.


calomel electrode

en-noun

calomel electrode (plural calomel electrodes)

(physics, physical chemistry) A reference electrode or half-cell consisting of mercury, mercurous chloride and potassium chloride; used in pH meters and voltmeters.


deionization

(physical chemistry) The use of ion exchange to remove ionic substances from a solution


unground

en-verb

unground (third-person singular simple present ungrounds, present participle ungrounding, simple past and past participle ungrounded)

ungrounds (present singular third-person)
ungrounding (participle present)
ungrounded (participle past)
ungrounded (past)

If you unground the extension cord it will cause a shock hazard in that drill.

(transitive, electricity, electronics) To remove a connection to ground potential.


hydroxonium

(chemistry) The cation obtained by reacting a proton with water - H₃O⁺; hydronium.


electricity meter

en-noun

electricity meter (plural electricity meters)

A device that measures the consumption of electricity, normally in terms of watt-hours.

مݣانة

a device that measures the consumption of electricity


dication

Any cation, of general formula X²⁺, formed by the removal of two electrons from a neutral species


trication

(chemistry) Any cation, of general formula X³⁺, formed by the removal of three electrons from a neutral species


tetracation

Any cation, of general formula X⁴⁺, formed by the removal of four electrons from a neutral species


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


electrical inductance

en-noun

electrical inductance (countable and uncountable, plural electrical inductances)

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


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


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


cationic detergent

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


ferrocenium

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


metabisulfite

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


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.


cyclovoltammetry

(physical chemistry) A form of scanning polarimetry.


zwitterionic

en-adj

zwitterionic (comparative more zwitterionic, superlative most zwitterionic)

more zwitterionic (comparative)
most zwitterionic (superlative)

Inspection of CD data reveals that, similar to previously reported data for megainin^([sic]) peptides [ 33 ], preference of α-helical conformation of TM2 and TM3 segments are different in anionic (SDS) and zwitterionic (DPC) media, reflecting the importance of electrostatic and hydrophobic interactions between the peptides and micelles.

2015 August 20, Amrita Roy Choudhury et al., “Structural Model of the Bilitranslocase Transmembrane Domain Supported by NMR and FRET Data”, in PLoS ONE, volume 10, →DOI:


counterion

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


counteranion

(chemistry) A negatively charged counterion


countercation

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


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.


amperometric

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

amperometrisch

that involves measurement of an electric current


anation

coordination compound
coordination compound

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


carbonium

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


carbynium

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


halonium

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


directivity

en-noun

directivity (countable and uncountable, plural directivities)

(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.


iminium

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


iminylium

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


lyonium

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


nitrilium

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


oxylium

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


phenonium

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


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.


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.


electrolyze

en-verb

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 British scientist Michael Faraday in 1834.

coin

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


interpole

Both types, however, were without interpoles and had sleeve bearings which required constant attention for lubrication.

1951 January, “The Inner Circle and its Rolling Stock”, in Railway Magazine, page 59:

During the same 29 min. the rise in temperature of the interpole windings of the main generator was 30° C.

1960 May, “Testing a Brush Type "2" diesel locomotive”, in Trains Illustrated, page 304:

(electrical engineering) An auxiliary pole of a commutator placed between the main poles to increase its efficiency.


electrokinesis

These results demonstrate that electrokinesis can be used for bacteria transport in soils with low hydraulic conductivity, even against the electro-osmotic flow.

2008, Nunes da Rocha et al., “Mobilisation of bacteria in a fine-grained residual soil by electrophoresis”, in Journal of Hazardous Materials, →DOI:

(physics) The transport of particles or fluid by means of an electric field acting on a fluid which has a net mobile charge.

électrokinésie

particle or fluid transport produced by an electrical field


field effect

The use of an electric field to control the conductivity of a channel in a semiconductor, as in FET.


borodeuteride

a solution of sodium borodeuteride

(inorganic chemistry) An anion formed of a boron atom and four deuterium atoms; or a salt formed by this ion


dicationic

a dicationic species


monocation

A cation formed by removal of a single electron from a neutral species


germylium

Any cation formed by a germanium atom with three bonds, having the general formula R₃Ge⁺


silylium

Any cation formed by a silicon atom with three bonds, having the general formula R₃Si⁺


stannylium

Any cation formed by a tin atom with three bonds, having the general formula R₃Sn⁺


CPC

en-noun

CPC (countable and uncountable, plural CPCs)

circuit protective conductor
circuit protective conductor#English

(electrical engineering, UK) Initialism of circuit protective conductor.


in parallel

Near-synonyms: synchronous (adj), synchronously (adverb), simultaneously (adverb)

Translations to all five languages were done in parallel.

At the same time; together, concurrently, cotemporally.

The total resistance of two resistors connected in parallel is easily calculated using a simple formula.

Aligned or connected side by side, instead of end to end.

rinnan

aligned or connected side by side, instead of in series


in series

The total resistance of two resistors connected in series is easily calculated as the simple sum.

(electricity) Of components: connected in a chain, instead of in parallel.


voltameter

An instrument used to measure the quantity of electric charge.


live wire

Two boys got electrocuted when a live wire fell on the auto-rickshaw in which they were sitting.

2006 September 27, “Two boys electrocuted”, in The Hindu, India, retrieved 2008-12-24:

(electricity) An electrical wire through which there is a flow of electrical current.


invertor

(electricity) A device that converts direct current into alternating current.


reionization

(astrophysics) The process by which the plasma of electrons and protons is produced after the Big Bang, when stars and galaxies ionized neutral hydrogen, or the era in which this occurs.


cyclotrigermenium

(inorganic chemistry, organic chemistry) A compound containing a ring of three germanium atoms, with a double bond between two of them (the germanium analogue of cyclopropene)

(inorganic chemistry, organic chemistry) The symmetric cation formed by removal of an electron from this compound

(inorganic chemistry, organic chemistry) Any derivative of this compound or cation


jellium

(quantum mechanics) A quantum mechanical model of a "gas" of electrons


synchro

synchro (countable and uncountable, plural synchros)

Abbreviation of synchronization or synchronized.

abbreviation of

(electrical engineering) A type of rotary electrical transformer that is used for measuring the angle of a rotating machine such as an antenna platform. In its general physical construction, it is much like an electric motor.

сельси́н

a type of rotary transformer used for measuring the angle of a rotating machine


bisammonium

(inorganic chemistry, organic chemistry, in combination) Two ammonium ions or groups in a molecule.


electric car

internal combustion engine
internal combustion engine

A car that uses electric motors and motor controllers instead of an internal combustion engine, the power coming from rechargeable batteries.


trip switch

Near-synonyms: breaker, circuit breaker

A device that deactivates an electrical circuit under certain conditions, often for safety reasons.


bounceless

LL-Q1860 (eng)-Flame, not lame-bounceless.wav

(electrical engineering) That does not require debouncing.


lightning mapper

en-noun

lightning mapper (plural lightning mappers)

(instrumentation) The component of such a system that gathers the required data, comprising an interconnected network of electric field change sensors that measure the time of arrival of electric field pulses from the strokes in a lightning flash. Two-dimensional maps require three such sensors, and three-dimensional maps require four.


IC lightning

Intracloud lightning; lightning which occurs within a cloud, resulting in the discharge of electricity between regions of the cloud. (Often, but not always, this takes the form of sheet lightning.)


antimetric

A Butterworth filter with an odd number of elements is symmetric while one with an even number of elements is antimetric.

(electrical engineering) The converse of symmetric in electrical network theory, especially filter theory. A network where the input and output image impedances are the dual, or inverse, of each other as opposed to symmetric networks where they are equal.

antimétrico

the converse of symmetric in electrical network theory


isothiazolidinium

(organic chemistry, especially in combination) A protonated cation formed from isothiazolidine.


amperometry

(physical chemistry) An analytical technique that involves the continuous measurement of electric current during a reaction or titration.


electrogravitics

a proposed science involving the use of an electric field to charge (or polarize) an object so as to counteract the effects of gravity.


elve

From e(mission of) l(ight and) v(ery low-frequency perturbations from) e(lectromagnetic pulse sources), and to avoid clashing with the acronym ELF (extremely low frequency) used in the same field of science.

It is likely that the first elve was recorded with the Space Shuttle low-light camera.

2006, Martin Füllekrug, Eugene A. Mareev, Michael J. Rycroft, Sprites, elves and intense lightning discharges, page 37:

(astronomy, meteorology) A rapidly expanding disk-shaped region of red luminosity in the ionosphere, lasting less than a thousandth of a second, which occurs high above energetic cloud-to-ground lightning of positive or negative polarity.


bead lightning

A relatively rare form of cloud-to-ground lightning which appears to break up into a string of short, bright sections, and lasts longer than the usual discharge channel.


SPS

(electricity) Initialism of supplementary power system/supply.

(electricity) Initialism of standby power system/supply.

(electricity) Initialism of smart power system/supply.

(electricity) Initialism of stand-alone power system/supply.

Initialism of standalone photovoltaic system/supply.

(electricity) Initialism of solar power station.

(aerospace) Initialism of solar power satellite.

Initialism of solar power station.
Initialism of solar power satellite.


acyliminium

(organic chemistry) Any acyl iminium ion


amidocuprate

(organic chemistry) Any of a group of complex anions containing copper amides; any salt containing such an anion


lithiation

lithiation (countable and uncountable, plural lithiations)

(physics) The incorporation of lithium into an electrode in a lithium-ion battery


coronium

From corona + -ium, coined by a certain A. Gruenwald.

(historical) A supposed chemical element, hypothesized in the 19th century in order to explain a green emission line seen during the total solar eclipse of 7 August 1869 (actually highly ionized iron).


superionic

en-adj

superionic (comparative more superionic, superlative most superionic)

more superionic (comparative)
most superionic (superlative)

LL-Q1860 (eng)-Flame, not lame-superionic.wav

(physics) Having a very high electrical conductivity


national grid

[Rural solar plant] schemes are of little help to industry or other heavy users of electricity. Nor is solar power yet as cheap as the grid. For all that, the rapid arrival of electric light to Indian villages is long overdue. When the national grid suffers its next huge outage, as it did in July 2012 when hundreds of millions were left in the dark, look for specks of light in the villages.

2013 July 20, “Out of the gloom”, in The Economist, volume 408, number 8845:

An electricity transmission network servicing a whole country.


transformator

If there is at hand a source of energy of 500 KW., a transformator is needed. In the case of a dynamo as well as in the case of the transformator, the cost is about the same, $8,000, not including the motor.

1910, American Sugar Industry and Beet Sugar Gazette:

(electrical engineering) Archaic form of transformer.


chronopotentiometry

(physical chemistry) A form of electroanalysis in which the rate of change of potential at an electrode is measured at constant current


picolinium

(organic chemistry) Any cation produced by protonation of a picoline.


pyrylium

(organic chemistry) A six-member aromatic heterocyclic cation containing five carbon atoms and an oxygen atom that carries a positive charge; any derivative of this compound.


electropolymerization

en-noun

electropolymerization (countable and uncountable, plural electropolymerizations)

(chemistry) Polymerization under the influence of an electric current.


electropolymerized

(chemistry) polymerized under the influence of an electric current


metavanadate

(inorganic chemistry) The polymeric oxyanion of vanadium [VO₃⁻]ₙ; any salt containing this anion


catanionic

(chemistry) Containing both cationic and anionic centres; zwitterionic.


acridinium

(organic chemistry, especially in combination) Any cation produced by protonation of an acridine.


electroelution

electroelution (usually uncountable, plural electroelutions)

The extraction of a sample from an electrophoresis gel by application of an electric current


abvolt

(electricity, electrical engineering, dated) A unit of electrical potential equal to one hundred millionth of a volt (10⁻⁸ volts), used in the centimeter-gram-second system of units.


abwatt

(electrical engineering) A unit of electrical power equal to one ten-millionth of a watt (10⁻⁷ watts), used in the centimeter-gram-second system of units.


net-zero

→ Welsh: sero net

Heath's home is defined as net-zero, which means it produces as much energy as it consumes throughout the year.

2010, Julianna Cummins and Edmonton Journal, Sun shines on Belgravia eco home, Calgary Herald

(architecture, electricity, environmentalism) Of a building or system, generating as much energy through solar, wind, and other renewable resources as it uses from the electricity network.


nebulium

(astronomy, physics, obsolete) A supposed chemical element proposed as a result of spectral analysis of light from a nebula; the emission lines concerned are now known to be due to doubly-ionized oxygen.


Hooke's atom

The harmonic potential used to describe the electron-nucleus interaction is a consequence of Hooke's law.

(quantum mechanics) An artificial helium-like atom where the Coulombic electron-nucleus interaction potential is replaced by a harmonic potential.


A.C.

A.C. (countable and uncountable, plural A.C.s)

AC

alternating current, anno Christi, ante Christum, army corps, athletic club


AWT

Airborne Wind Turbine
w:Airborne wind turbine

(electricity, power) Initialism of Airborne Wind Turbine.


PAT

PAT (countable and uncountable, plural PATs)

portable appliance testing
w:portable appliance testing

(electrical engineering, UK, Ireland, New Zealand, Australia) Initialism of portable appliance testing.


air cell

metal-air electrochemical cell
metal-air electrochemical cell

(electrical engineering) An electrochemical cell that uses air as a terminal, such as the metal-air electrochemical cell.


positive logic

(electrical engineering) The use of the higher voltage level to represent the Boolean value 1 and the lower voltage level to represent the Boolean value 0. For instance: ~5v is equal to logical 1₂, and ~0v is equal to 0₂.


negative logic

(electrical engineering) The use of the higher(positive) voltage level to represent the Boolean value 0 and the lower voltage(negative) level to represent the Boolean value 1.


combinational logic

combinational logic (countable and uncountable, plural combinational logics)

(electrical engineering) A form of digital circuit logic where the current outputs are entirely a function of the current inputs, without having a memory of previous inputs or states.


sequential logic

Sequential logic is used to construct finite state machines.

(electrical engineering) A form of digital circuit logic where the current outputs depend not only on the current inputs, but also on a memory of past inputs and states.


XNOR

(electrical engineering) A logic gate which is the inverse of XOR.


prime implicant

prime implicant (plural prime implicants)

An implicant (Boolean product term) which is called "prime" because none of its proper factors is itself an implicant.

(electrical engineering) A group of related 1's (implicant) on a Karnaugh map which is not subsumed by any other implicant in the same map. Equivalently (in terms of Boolean algebra), a product term which is a "minimal" implicant in the sense that removing any of its literals will yield a product term which is not an implicant (but beware: on a Karnaugh map it would appear "maximal").

(electrical engineering) A group of related 0's (implicant) on a Karnaugh map which is not subsumed by any other implicant (of 0's) in the same map.


essential prime implicant

essential prime implicant (plural essential prime implicants)

(electrical engineering) A prime implicant on a Karnaugh map which "covers" at least one 1 which is not covered by any other prime implicant.


non-essential prime implicant

non-essential prime implicant (plural non-essential prime implicants)

(electrical engineering) On a Karnaugh map: a prime implicant which does not cover any 1 which cannot covered by some other prime implicant.


HPC

high power charging
high power charging#English

(electricity, automotive) Initialism of high power charging.


antitracking

an antitracking varnish

(electricity) Resistant to the electrical phenomenon of tracking.


electrocharged

I pretended the brush of his knuckles against my knees wasn’t the kind of electrocharged intimacy I recall as a preamble to letters in Penthouse Forum.

2008 March 6, Cintra Wilson, “Part Hip-Hop, Part Haughty, All Decadent”, in New York Times:


conjugate redox pair

conjugate redox pair (plural conjugate redox pairs)

(electrochemistry) An electron donor and its corresponding electron acceptor form.


power strip

A block of electrical sockets that attaches to the end of a flexible cable and allows multiple electrical devices to be plugged in.


en-proverb

lightning never strikes twice in the same place

lightning never strikes the same place twice

salama ei iske kahta kertaa samaan paikkaan

la foudre ne tombe jamais deux fois au même endroit

piorun nigdy nie uderza dwa razy w to samo miejsce

um raio nunca cai duas vezes no mesmo lugar

un rayo no cae dos veces en el mismo lugar


blue jet

Mysterious bluejets can be seen with the naked eye from the ground, but they are rare and difficult to spot.

1999, Patricia Barnes-Svarney, Thomas E. Svarney, Skies of fury: weather weirdness around the world, Simon and Schuster, page 100:

(astronomy, meteorology) An upper atmospheric optical phenomenon associated with thunderstorms, a rapidly expanding disk-shaped region of luminosity, lasting less than a thousandth of a second, which occurs high above energetic cloud-to-ground lightning of positive or negative polarity.


blue starter

Blue starters were first observed in 1994.

2007, Vladimir A. Rakov, Martin A. Uman, Lightning: Physics and Effects, Cambridge University Press, page 483:

(meteorology) A rapidly expanding disc-shaped region of luminosity, lasting less than a thousandth of a second, seen high above energetic lightning associated with hail-producing regions of thunderstorms, reaching up no higher than about 12 miles altitude.


transient luminous event

en-noun

transient luminous event (plural transient luminous events)

Transient luminous events can be another source of ionization in the upper atmosphere.

2010, Rafael Escribano Torres, Isabel Tanarro Onrubiay, Spectroscopy of the atmospheres, CSIC, page 34:

During World War II (and probably before), high flying pilots were reported to have observed unexplained aerial phenomena (UAP), often now called transient luminous events (TLE’s), particularly in the vicinity of thunderstorms.

2012, Don Lipman, “Red sprites, blue jets, and elves What are these mysterious, elusive phenomena?”, in The Washington Post:

Known as Transient Luminous Events (TLEs), these unusual features were first spotted by accident in 1989.

2018, Mary Halton, “Hunting mystery giant lightning from space”, in BBC News:

(astronomy, meteorology, aviation) Any of a variety of upper atmospheric optical phenomena associated with thunderstorms.


sprite halo

sprite halo (plural sprite halos or sprite haloes)

sprite halos (plural)
sprite haloes (plural)

In lhe: early days of LLTV monitoring it was common to observe an apparent elve followed by a sprite, sometimes called a "sprelve." While elves do indeed precede some sprites, the "sprelve" in most cases, was found to represent a "sprite halo."

(astronomy, meteorology) An upper-atmospheric optical phenomenon associated with thunderstorms, a diffuse disk-shaped glow that precedes a sprite and propagates downward.


sprelve

In the early days of LLTV monitoring it was common to observe an apparent elve followed by a sprite, sometimes called a "sprelve." While elves do indeed precede some sprites, the "sprelve" in most cases, was found to represent a "sprite halo."

(astronomy, meteorology) An upper atmospheric optical phenomena associated with thunderstorms, in which an elve is immediately followed by a sprite.


upward lightning

upward lightning (countable and uncountable, plural upward lightnings)

(astronomy, meteorology) An upper-atmospheric optical phenomenon associated with thunderstorms, in which the lightning bolt projects straight into the upper atmosphere.


red sprite

Red sprites flash high above thunderstorm clouds.

1999, Patricia Barnes-Svarney, Thomas E. Svarney, Skies of fury: weather weirdness around the world, Simon and Schuster, page 99:

(astronomy, meteorology) An upper atmospheric optical phenomena associated with thunderstorms, a large but weak luminous flash that appears directly above an active thunderstorm system and is coincident with a powerful positive cloud-to-ground lightning strike.


gigantic jet

Gigantic jets appear to provide an electrical connection between cloud tops and the ionosphere.

2009, Michael C. Kelley, The earth's ionosphere: plasma physics and electrodynamics, Academic Press, page 364:

(astronomy, meteorology) An upper atmospheric optical phenomena associated with thunderstorms, a carrot-shaped red sprite that propagates upward from the core of an oceanic thunderstorm.


rhodammonium

Rhodammonium Compounds. By S. M. JÖRGENSEN (J. pr. Chem. [2], 25, 346-348).— The author has prepared and cursorily examined some of the rhodammonium compounds, and has found them to be strictly analogous to the cobalt- and chrom-ammonium compounds.

1882, “Abstracts of Chemical Papers”, in Journal of the Chemical Society - Part 2, page 1173:

Rhodammonium Hydroxide, Rh₂(NH₃) ₁₀ (OH)₆, is obtained by warming rhodammonium chloride with water and silver oxide, and evaporating the solution.

1891, Henry Enfield Roscoe, Carl Schorlemmer, A Treatise on Chemistry: Metals, page 436:

When the ammoniacal compound is mixed with excess ammonia and the solution filtered and concentrated, a yellow salt is obtained, which, on treatment with water, loses ammonium chloride and forms rhodammonium trichloride, 10NH₃Rh₂Cl₆.

1896, Thomas Edward Thorpe, The metals, page 399:

Other addition agents such as lead acetate and potassium dichromate, lead acetate and ammonium chloride, sodium thiosulphate with rhodammonium or with potassium dichromate and ammonium sulphate have been added

1951, Sheet Metal Industries, volume 28, page 948:

(chemistry, obsolete) A cation, Rh₂(NH₃)₁₀⁶⁺, containing rhodium and ammonia.


voltampere

(physics) A derived unit of electrical power that is the product of one volt and one ampere


inducteous

(electricity, archaic) Rendered electropolar by induction, or brought into the opposite electrical state by the influence of inductive bodies.


permittance

permittance (countable and uncountable, plural permittances)

(electricity) The power of a dielectric to permit or enhance induction.


two-phase

(electricity) Having two alternating currents whose phases differ by 90°.


WPT

wireless-power transfer
wireless-power transfer#English

(electricity) Abbreviation of wireless-power transfer.


tetraxenonogold

(inorganic chemistry) The cation AuXe₄²⁺


technetate

(inorganic chemistry) Any oxyanion of technetium; any salt containing such an anion.


cyanoborohydride

(inorganic chemistry) The anion BH₃-C≡N⁻; any salt containing this anion


Leyden jar

/ˈlaɪdən ˌdʒɑɹ/

Named after the city of Leiden (in the Netherlands), where it was invented.

(electrical engineering, historical) A glass jar or bottle used to accumulate static electricity between two electrodes.

قَارُورَة لَيْدَن

glass jar used to accumulate static electricity


abmho

(electricity) A unit of measurement (10⁹ mhos) in the centimeter-gram-second scale used to measure conductance


coion

(chemistry) Any ion of the same charge as another in a solution or other electrochemical system.


chromenylium

chromenylium (countable and uncountable, plural chromenyliums)

(organic chemistry) The aromatic cation composed of a benzene ring fused to one of pyrylium


xanthylium

xanthylium (countable and uncountable, plural xanthyliums)

(organic chemistry) The aromatic cation composed of two benzene rings fused to one of pyrylium


chemoelectrical

(physical chemistry, physics) Describing any process in which chemical energy is converted to electrical energy


quinolinium

quinolinium (countable and uncountable, plural quinoliniums)

(organic chemistry) The cation formed by protonation of a quinoline


monophase

(electricity) Having a single phase of alternating current.

unchesmadagh

having a single phase of alternating current


suicide cable

So called because when one end is plugged into a live outlet, the exposed prongs of the other end are highly dangerous.

When the hurricane hit and I lost power, I fired up the generator and jacked it in to the outlet in my garage with a suicide cable; at least I was able to run a few lights and my refrigerator.

I did the same thing as you, except I ran one suicide cable from the genset to the house, then because the genset is only 120v, I ran another suicide cable from phase to phase to get 120v throughout the house.

2000 June 19, Philip Lewis, “Dedicated outlets for generator?”, in alt.home.repair (Usenet):

Measure the voltage drop when it's on. Break out the suicide cables and test that same device using line to ground. Depending on how your place is wired, you may find that under an actual load, your ground is really awful.

2010 May 29, Cydrome Leader, “re: surge protectors”, in sci.electronics.repair (Usenet):

No, I'm not. That would only make sense if the grid power were persistently unreliable, which it isn't. Nor am I using a suicide cable.

2011 February 25, Sylvia Else, “Not earthing a generator”, in aus.electronics (Usenet):

(informal, electrical work) A simple electrical cord with prongs on both ends; plugging one end into a live outlet (for example a generator) and the other end into a dead outlet (in a house with no power) allows power to be injected from the live outlet into the dead one.


elementary charge

elementary charge (plural elementary charges)

(physics) The electric charge on a single proton or electron


electrical energy

Energy made available for consumption or consumed in the form of electricity or electric power; electricity.


a.c.

Lamp a.c. generator Fig. 24.1

2000, Jim Breithaupt, New Understanding Physics for Advanced Level:

Thus the frequency of the given a.c. supply will be equal to the frequency of the vibrating string.

alternating current
alternating current#English

(electricity) Initialism of alternating current.


helium hydride

(inorganic chemistry) Ellipsis of helium hydride cation. The unstable binary cation HeH⁺ present in interstellar space. It is the strongest acid, reactive with every chemical species except positive ions, including electrons.


crystal field theory

(physical chemistry, quantum mechanics) A description of various properties of transition element complex compounds that compares the effects of its ligands to that of neighbouring atoms in a crystal


XAND

(electrical engineering, rare) XNOR, a logic gate.


XNAND

(electrical engineering, rare) XOR, a logic gate


arcover

(electricity) The unwanted arcing of electricity from one component to another, caused for example by the presence of contaminants.


ground loop

(electricity) A (usually unwanted) current that flows between two points that are meant to be at the same potential, but are not.


rhodocenium

(organic chemistry) The unipositive cation of rhodocene.


Lichtenberg figure

Lichtenberg figure (plural Lichtenberg figures)

Named after the German physicist Georg Christoph Lichtenberg.

Lichtenberg figures are often seen on the skin of a person who has been struck by lightning.

(electricity) A branching pattern on the surface of an insulator that has been subject to an electric discharge

figura de Lichtenberg

branching pattern on an insulator subject to an electric discharge


cathode ray

(electricity) A ray consisting of a stream of electrons in a vacuum tube that are emitted by the cathode and accelerated towards the anode by an electric field.


corona discharge

corona discharge (plural corona discharges)

(electricity) The ionization of air (or any other fluid) surrounding an electrically energized conductor, as a result of a strong electric field.

koronapurkaus

ionization of air surrounding an energized conductor


electrovore

/ɪˈlɛktɹəvɔː(ɹ)/

In Cosmos, Carl Sagan speculates on the existence of extraterrestrial civilisations, which he characterises pretentiously by means of hypothetical summaries such as: "cryogen supercooled electrovores with neutron crystal dense packing and modular starminers ..."

1984 November 8, Peter Forbes, “The silicon solution”, in New Scientist:

! WE DO NOT CONSUME EARTH FOOD. WE ARE ELECTROVORES. IF YOU
! HAVE A SURGE PROTECTOR WE WOULD BE MOST OBLIGED.

1998 October 30, Rollin Thomas, “New Borg Graduate Student.”, in talk.bizarre (Usenet):

There were, Gregory knew, AIs residing within implants in dolphin brains now designed to bridge the linguistic barriers between the species, but those translations had only proven that dolphin brains were as alien to humans as the group minds of the abyssal electrovores inhabiting the under-ice ocean of Enceladus.

2013, Ian Douglas, Deep Space: Star Carrier, HarperCollins, →ISBN:

(science fiction) An organism or entity which feeds on electricity.


carbamoyl phosphate

An anion, produced from bicarbonate, ammonia and phosphate, that acts as an intermediary metabolite in land animals.


formylium

A positively-charged cation with the formula HCO⁺, related to formaldehyde, aldehydes, and formyl.


smart grid

In an interview with the Guardian, Cameron said "smart grid technology", one of the centrepieces of Barack Obama's planned multibillion dollar infrastructure investment programme, was the equivalent of "the internet for electricity.[…]"

2009 January 16, Patrick Wintour, Nicholas Watt, Dan Milmo, “Cameron: we will build £1bn 'smart grid' to green Britain”, in The Guardian, →ISSN:

A computerized power grid which gathers and analyzes information from users to determine the most efficient and reliable operation of electricity distribution


electric vehicle

electric vehicle (plural electric vehicles)

By the middle of the decade, he [Clive Sinclair] had sold his computer businesses and moved on to transportation with the Sinclair C5 electric vehicle, which was designed with a single seat but, bafflingly for as wet and chilly a country as Britain, without a roof.

2012 March 4, Alice Rawsthorn, “Farewell, Pocket Calculator?”, in The New York Times:

His car company, Tesla, controls two-thirds of the multibillion-dollar electric-vehicle market it pioneered and is valued at a cool $1 trillion.

December 13 2021, Molly Ball, Jeffrey Kluger, Alejandro de la Garza, “Elon Musk: Person of the Year 2021”, in Time:

A vehicle that uses an electric motor as the means of propulsion; most especially, an e-car or e-truck.

BEV

battery electric vehicle; an EV that is fully electric as opposed to hybrid electric

HEV

hybrid electric vehicle; an EV that has both an electric powertrain and an ICE for charging and/or propulsion

e-skateboard

usually used coordinately rather than hyponymously, when the governing mental schema implicitly restricts EVs to the larger, heavier vehicles


slab line

As most of air-dielectric lines the shielded slab line is particularly recommended for operation at high peak and average powers.

2008, Stanislaw Rosloniec, Fundamental Numerical Methods for Electrical Engineering, page 258:

The line continues through the side wall of the waveguide where it transitions to an air-dielectric stripline consisting of cavity 2 with a metallic slab line.

2013, Bert Henderson , Edmar Camargo, Microwave Mixer Technology and Applications, page 361:

As shown in Figure 13.2, it is based on a slab line, consisting of two parallel ground planes with a center main line, plus a reflective element (a conductive “probe”).

2013, Valeria Teppati, Andrea Ferrero, Mohamed Sayed, Modern RF and Microwave Measurement Techniques, page 348:

(electrical engineering) A central conductor surrounded by two planar ground slabs.


stepdown

(of a transformer) Used to decrease the secondary voltage relative to the primary voltage.


Yablochkov candle

Yablochkov candle (plural Yablochkov candles)

Named after its inventor, Pavel Yablochkov.

(electrical engineering) A type of electric carbon arc lamp.


chain lightning

Lightning in angular, zigzag, or forked flashes.


heat lightning

So called because it is common on hot summer nights and is sometimes popularly thought to be caused by heat rather storms.

The typical range at which thunder can be heard is around 24 km [...] Often, people mistakenly call lightning whose thunder is too far away to be heard "heat lightning," suggesting that the lightning somehow owes its existence merely to the heat of the day and not to a thunderstorm. Nonsense. "Heat lightning" is simply distant lightning whose thunder cannot be heard.

2001, Lee M. Grenci, Jon M. Nese, A World of Weather: Fundamentals of Meteorology: a Text/ Laboratory Manual, Kendall Hunt, →ISBN, page 205:

Lightning and/or thunder which the observer attributes to heat rather than a storm (e.g. because the storm/rain is too distant to be seen, or because there is no rain, as with dry lighting).

(in particular) Visible lightning that occurs too far away for the resulting thunder to be audible by the observer.

THE RAIN FINALLY CAME FROM THE DARK GREY SKIES, SOFT AND TEMPTING AT FIRST, WITH THE SOUND OF HEAT LIGHTNING HOVERING OVER THE SKYSCRAPERS! [image is of a city being rained on, no lightning visible]

2019 September 3, William Dubay, Don McGregor, Bud Lewis, Eerie Archives Volume 27, Dark Horse Books, →ISBN, page 229:

Our windows were open, and inside the wind and rumble of heat lightning, I could hear Albert's horses nickering in the darkness.

2008 July 8, James Lee Burke, Swan Peak: A Dave Robicheaux Novel, Simon and Schuster, →ISBN, page 307:

(less commonly) Thunder that is heard without lightning being seen by the observer; heat thunder.

Joel Brinkley, a schoolteacher, who was a child in the 1950s, recalled a similar feeling during this era: "It seems surreal now. Every summer, when I heard heat lightning over the city and the sky would light up, I was convinced it was all over. My whole childhood was built on the notion that the Soviets were the real threat."

2015 February 9, Hajimu Masuda, Cold War Crucible: The Korean Conflict and the Postwar World, Harvard University Press, →ISBN, page 86:

The beginning of a watery diarrheal event is said to be marked by a great deal of noise, characterized as […] rumbling (tzilelet 'rumbling sound of heat lightning in the rainy season'), […]

2015 March 8, Elois Ann Berlin, Brent Berlin, Medical Ethnobiology of the Highland Maya of Chiapas, Mexico: The Gastrointestinal Diseases, Princeton University Press, →ISBN, page 98:


lightning arrester

lightning arrester (plural lightning arresters)

A device used on electrical and telecommunications systems to protect the insulation and conductors from the damaging effects of lightning. Typically, it has a high-voltage terminal and a ground terminal. When a surge travels along the power line to the arrester, the current from the surge is diverted through the arrester, in most cases to earth.


lightning discharger

lightning discharger (plural lightning dischargers)


breaking capacity

breaking capacity (plural breaking capacities)

The current that a fuse, circuit breaker, or other electrical apparatus is able to interrupt without being destroyed or causing an electric arc with unacceptable duration.

katkaisukyky

current which a breaking device is able to break


selsyn

→ Russian: сельси́н (selʹsín)

(electrical engineering) A synchro whose currents are used directly to drive a receiver synchro that rotates in unison with the synchro transmitter.


electriferous

(archaic) Producing or transmitting electricity.


impedance coil

(electricity) a coil of wire designed to provide impedance in an electric circuit


antilogue

analogue

antonym(s) of “of the magnetic pole that becomes positive when heated and negative when cooled”

Borrowed from Ancient Greek ἀντίλογος (antílogos, “contradictory, reverse”), from ἀντιλέγω (antilégō, “speak against, gainsay, contradict”).

bor

(mineralogy, electricity, in pyroelectric substances such as tourmaline) of or pertaining to the magnetic pole that becomes negative as its temperature increases and positive as its temperature decreases

antíleg

of the magnetic pole which is negative when heated and positive when cooled

antilogous

of the magnetic pole that becomes negative when heated and positive when cooled


lightning fast

(idiomatic) Extremely fast, fast as lightning.


mercury switch

en-noun

mercury switch (plural mercury switches)

A switch that opens and closes an electric circuit through a small amount of liquid mercury.


post office box

post office box (plural post office boxes)

(electricity) A test instrument once used by telephone engineers.


ECE

Initialism of electrical and computer engineering.


Tucker telephone

Tucker telephone (plural Tucker telephones)

Named after the Tucker State Prison Farm, where its inventor Dr. A. E. Rollins worked.

The inmate doctor wired him up on the "Tucker Telephone" with one wire to his penis and another to his big toe.

1992, British Medical Association, quoting Case report: Tucker State Prison Farm, Tucker, Arkansas (1966), Medicine Betrayed: The Participation of Doctors in Human Rights Abuses, Zed Books, page 33:

Although they enjoined the use of the Tucker telephone and similar instruments of torture, they noted that the Department of Corrections had dismissed a number of officials implicated in past violations and had instituted new rules to govern corporal punishment.

2000 March 18, Malcolm M. Feeley with Edward L. Rubin, Judicial Policy Making and the Modern State: How the Courts Reformed America's Prisons, Cambridge University Press, →ISBN, page 57:

A torture device for giving electric shocks, designed using parts from an old-fashioned crank telephone.


triacetoxyborohydride

(organic chemistry) The anion formally derived from borohydride by replacing three hydrogen atoms with acetoxy groups; any salt containing this anion


nuclear charge

(nuclear physics) The electric charge of a nucleus of an atom, equal to the number of protons in the nucleus times the elementary charge.


REB

Borrowed from Russian РЭБ (REB), abbreviation of радиоэлектронная борьба (radioelektronnaja borʹba, “radio-electronic combat”).

Even though the relationship between the Information Troops and the existing REB Troops is not completely clear, REB Troops were one of the few elements of the Russian forces whose performance did not suffer intense cricisism
[note] REB Troops are the Voyska radioelektronnoy bor’by, or Voyska REB — the Russian military’s electronic warfare branch.

2012, “A Slovenian Perspective on Cyber Warfare”, in Daniel Ventre, editor, Cyber Conflict: Competing National Perspectives, London: John Wiley & Sons, →ISBN:

The Russian command created groupings of radio-electronic combat (REB) forces designed to work at the tactical control level. During the First Chechen War, REB forces experienced a narrow frequency range for their equipment and an insufficient level of automation.

2003, Anne C. Aldis, Roger N. McDermott eds., Russian Military Reform 1992–2002, London: Frank Cass Publishers, →ISBN:

The development of a nuclear-powered ship with a standard-displacement of a 75,000–80,000 tons with an aircraft fleet of “No less than 7 LAk [carrier-based aircraft],” which included fighter aircraft, ground attack aircraft, and ASW, RTR [radio-relay support], REB [electronic warfare], and RLD [radar picket] aircraft and various types of helicopters.

1992, Warship International, volume 29, Rutland, Mass.: International Naval Research Organization, page 210:

(chiefly in a Russian context) electronic warfare and related techniques, equipment, or troops.


jump spark

A spark produced by the jumping of electricity across a permanent gap.


junction box

(electrical engineering) A box through which the main conductors of a system of electric distribution pass, and where connection is made with branch circuits or to extend circuits.


side flash

en-verb

side flash (third-person singular simple present side flashes, present participle side flashing, simple past and past participle side flashed)

side flashes (present singular third-person)
side flashing (participle present)
side flashed (participle past)
side flashed (past)

The charge traveled down the aluminum mast, and, not finding a path to ground, it side-flashed, blowing out the boat's hull.

2010, Brunonia Barry, The Map of True Places, New York, N.Y.: William Morrow, →ISBN, page 243:

(intransitive) Of electricity: to create a side flash.


hotel load

Possibly from the fact that this type of electrical load relates to the human occupancy aspects of a vehicle such as air conditioning and lighting, analogous to the features of a hotel.

Auxiliary power units provide electricity to all systems aboard a ship except main propulsion. These systems include hotel services (lighting, plumbing, and pumps for water), […] Cruise ships […] have big hotel loads; hence, quiet, unobtrusive fuel cell auxiliary power units may be particularly suited for this type of ship.

1986 February, Office of Technology Assessment, United States Congress, “Other Transportation Applications”, in Marine Applications for Fuel Cell Technology: A Technical Memorandum, Washington, D.C.: United States Government Printing Office, →OCLC, page 29, column 1:

As well as providing the propulsive power, the batteries also have to provide power for the operation of sensors, weapons and auxiliary machinery and those for habitability, ventilation and air-conditioning of the crew. They constitute a steady drain on the batteries, governed by the length of time submerged, and together are termed the Hotel Load.

1994, Roy Burcher, Louis J. Rydill, Concepts in Submarine Design (Cambridge Ocean Technology Series; 2), Cambridge, New York, N.Y.: Cambridge University Press, →ISBN, pages 125–126:

The "hotel load" (i.e., the electricity required for people), in watts per square foot, was multiplied by the module area[…].

1997 May, “Appendix C: Environmental Impacts Analysis Methods”, in Final Waste Management Programmatic Environmental Impact Statement for Managing Treatment, Storage, and Disposal of Radioactive and Hazardous Waste (DOE/EIS-0200-F), volume III of V, Washington, D.C.: Office of Environmental Management, United States Department of Energy, →OCLC, page C-17:

[I]n heavy-duty, long haul trucking as much as 40 percent of engine run time is spent idling to provide auxiliary (nonmotive) power. Many of these energy demands are "hotel" loads, for example, heating or cooling a sleeping/living compartment, refrigerators, stoves, entertainment systems, and so forth.

2003?, Kenneth S. Kurani, Daniel Sperling, “Introduction to the VIII Biennial Asilomar Conference on Transportation, Energy, and Environmental Policy: Managing Transitions”, in Dan Sperling, Ken Kurani, editors, Transportation, Energy, and Environmental Policy: VIII Biennial Asilomar Conference, September 11–12, 2001, Washington, D.C.: Transportation Research Board of the National Academies, →ISBN, page 9:

Here the total electrical power consumed by the vehicle, P, is equal to the sum of the propulsion power, P#95;#123;prop#125; and hotel load, H. Hotel load is simply the power consumed by all subsystems other than propulsion.

2009, J. G. Bellingham, “Platforms: Autonomous Underwater Vehicles”, in Steve A. Thorpe, editor, Encyclopedia of Ocean Sciences: Measurement Techniques, Platforms and Sensors, London, Burlington, Mass., San Diego, Calif.: Academic Press, →ISBN, page 164, column 1:

(electrical engineering) The electrical load caused by all systems on a vehicle (especially a marine vessel or a truck) other than propulsion.


feed-in

A system whereby users with small-scale, renewable generators may supply electricity to the grid and get paid for it.


electric arc

A discharge of electricity across a gap, causing ionization of the air (or other gas) and resulting in a bright, hot plasma.


methylthioninium

From methyl + thionine + -ium (“quaternary ammonium compound”).

af

Methylene blue (MB, methylthioninium chloride) is a phenothiazine that crosses the blood brain barrier and acts as a redox cycler.

2014 February 20, Cliona Stack et al., “Methylene blue upregulates Nrf2/ARE genes and prevents tau-related neurotoxicity”, in Human Molecular Genetics, volume 23, →DOI:

(organic chemistry, pharmacology) The heterocyclic cation 3,7-bis(dimethylamino)-phenothiazin-5-ium, which is the basis of methylene blue


lightning bird

A mythological creature in South African tribal folklore: a large, vampiric, black and white bird that can summon thunder and lightning and is said to consume blood and to seduce women in the form of a man.


interturn

(electrical engineering) Between turns of a winding.


electric potential difference

en-noun

electric potential difference (plural electric potential differences)


geocoronium

From geo- + corona + -ium, coined by Alfred Wegener in 1911.

(geophysics, meteorology, obsolete) A hypothetical gaseous chemical element proposed to explain certain spectroscopic lines, and the green glow, found in the polar aurorae, that was later found to be explained by singly-ionized oxygen.


delithiation

delithiation (countable and uncountable, plural delithiations)

(physics) The removal of lithium from an electrode of a lithium-ion battery


TV pickup

(UK) The situation where a commercial break during a television programme adversely affects electricity generation and transmission as large numbers of people are operating appliances (kettles, refrigerators, etc.) at the same time.


trip-switch

(electricity) A device to halt the current flow, a cut-out or trip.


fuse wire

(electricity) the thin wire used in fuses. In old-style fuses a new piece of wire has to be inserted when the fuse blows.


wind generator

a wind-driven generator, working on the same principle as a wind turbine but usually on a smaller scale, used for example for charging batteries on sailing boats.


blackstart

From black + start; in the sense of a bird, due to the analogy of redstart.

A restart of a power station without the use of power from the external electricity network.


field coil

The maximum permissible rises in temperature for both the main generators and the traction motors are 120° C. in the armature and 130° C. in the field coils, so that there is an ample margin of safety to meet abnormal conditions.

1960 May, “Testing a Brush Type "2" diesel locomotive”, in Trains Illustrated, page 304:

(electrical engineering) An electromagnet, consisting of a coil of wire through which a current flows, used to generate a magnetic field in an electromagnetic machine, typically a rotating machine such as a motor or generator.


electroformation

electroformation (countable and uncountable, plural electroformations)

Chloroform was removed by applying nitrogen gas to the electroformation chamber followed by incubation at 95°C for 5 min, and subsequently filled with 800 μL of a 200 mM sucrose solution containing Alexa Fluor 488 and Alexa Fluor 633 hydrazide in a 1:1 ratio.

2015 July 28, Morten Hyldgaard et al., “Isoeugenol has a non-disruptive detergent-like mechanism of action”, in Frontiers in Microbiology, volume 6, →DOI:


macrocircuit

An electrical circuit composed of macroscale components


clean power

Remind them, if necessary, that properly done, microhydro will generate clean power for many years without damaging the environment in any way.

2003, Scott Davis, Microhydro: Clean Power from Water:

Electric power generated without polluting the environment.


cyanoborodeuteride

Synthesis of DiLeu labels required purchasing the following isotopic reagents from ISOTEC Inc (Miamisburg, OH): leucines (ʟ-leucine and ʟ-leucine-1-¹³C,¹⁵N), heavy formaldehyde (CD₂O, 20% w/w), sodium cyanoborodeuteride (NaBD₃CN), ¹⁸O water (H₂¹⁸O), and deuterium water (D₂O).

2015 August 12, Tyler Greer et al., “Custom 4-Plex DiLeu Isobaric Labels Enable Relative Quantification of Urinary Proteins in Men with Lower Urinary Tract Symptoms (LUTS)”, in PLoS ONE, volume 10, →DOI:

(inorganic chemistry) Any cyanoborohydride in which one or more hydrogen atoms have been replaced with deuterium


biredox

(chemistry) Having two redox moieties in each molecule (typically in a cation and an anion)


chronopotentiometric

(physical chemistry) Relating to chronopotentiometry


cationically

(physical chemistry, physics) By means of cations


anionization

(physical chemistry) Conversion to, or reaction with an anion


electropolymerize

en-verb

electropolymerize (third-person singular simple present electropolymerizes, present participle electropolymerizing, simple past and past participle electropolymerized)

electropolymerizes (present singular third-person)
electropolymerizing (participle present)
electropolymerized (participle past)
electropolymerized (past)

(chemistry) To polymerize electrochemically


argonium

Our results demonstrate the suitability of argonium as a tracer of the almost purely atomic, diffuse ISM in high-redshift sources.

2015, Holger S.P. Müller, Sébastien Muller, Peter Schilke, Edwin A. Bergin, John H. Black, Maryvonne Gerin, Dariusz C. Lis, David A. Neufeld, Sümeyye Suri, “Detection of extragalactic argonium, ArH⁺, toward PKS~1830-211”, in arXiv:

A cation (ArH⁺) formed by protonation of an argon atom


three-phase

By the end of the year all new electrification projects were virtually complete and conversion of the remaining three-phase 3,700V a.c. sections to 3,000V d.c. was well in hand.

1963 January, “Beyond the Channel: Italy”, in Modern Railways, page 62:

(electricity) Using three separate alternating currents of the same voltage at different phases.

трифазен

using three separate alternating currents


ionophilic

en-adj

ionophilic (comparative more ionophilic, superlative most ionophilic)

more ionophilic (comparative)
most ionophilic (superlative)

(physical chemistry) Having an affinity for ions or a specific electrode


ionophobic

We show via an analytical theory and Monte Carlo simulations that charging is sensitively dependent on the affinity of ions to the pores, and that the capacitance of ionophobic pores can be optimized at pore widths significantly larger than the ion diameter.

2015, Alpha A Lee, Dominic Vella, Alain Goriely, Svyatoslav Kondrat, “The Capacitance-Power-Hysteresis Trilemma in Nanoporous Supercapacitors”, in arXiv:

(physical chemistry) Having a repulsion to ions


downlead

(electricity) An electrical cable connecting an outdoor structure to an indoor or in-ground structure.


trihydrogen

en-noun

trihydrogen (countable and uncountable, plural trihydrogens)

A cation triangular molecule composed of three hydrogen atoms, or matter composed of such molecules. Symbol: H₃⁺.


overcoupling

We observe continuous transition of the coupling between the fiber-taper waveguide and the microresonator from undercoupling to critical coupling and then to overcoupling regimes by increasing the pump power even though the spatial distance between the resonator and the waveguide was kept fixed.

181105 (2016), Motoki Asano, Şahin Kaya Özdemir, Weijian Chen, Rikizo Ikuta, Lan Yang, Nobuyuki Imoto, Takashi Yamamoto, “Controlling slow and fast light and dynamic pulse-splitting with tunable optical gain in a whispering-gallery-mode microcavity”, in Appl. Phys. Lett., volume 181105:

(electrical engineering) The act of coupling two tuned transformers so as to create a broader bandwidth.


undercoupling

LL-Q1860 (eng)-Flame, not lame-undercoupling.wav

(electrical engineering) The act of coupling two tuned transformers so as to create a narrower bandwidth.


Dirac cone

(physics) A surface in materials such as graphene that exhibits unusual electron transport


ferroelastoelectric

More importantly, the predicted low domain wall energy and small migration barrier together with the coupled multiferroic order and anisotropic electronic structures suggest their great potentials for tunable multiferroic functional devices by manipulating external electrical, mechanical, and optical field to control the internal responses, and enable the development of four device concepts including 2D ferroelectric memory, 2D ferroelastic memory, and 2D ferroelastoelectric nonvolatile photonic memory as well as 2D ferroelectric excitonic photovoltaics.

2016, Hua Wang, Xiaofeng Qian, “Two-Dimensional Multiferroics: Ferroelasticity, Ferroelectricity, Domain Wall, and Potential Mechano-Opto-Electronic Applications”, in arXiv:

(physics) ferroelastic and ferroelectric


creepage distance

creepage distance (plural creepage distances)

The shortest distance along a solid insulation surface between two conductive parts.


bituminosulfonate

ammonium bituminosulfonate
ammonium bituminosulfonate

(organic chemistry, petrochemistry) An anion found in ammonium bituminosulfonate (ichthammol), obtained by dry distillation of oil shale and subsequent sulfonation.


lightning bolt

Shortly after dinner one day — it was a hot summer afternoon — a very severe thunderstorm broke out over the city and after it had lasted some ten to fifteen minutes an exceptionally bright lightning bolt flashed through the air followed immediately by a terrific crash of thunder.

1913, Popular Electricity and the World's Advance, page 192:

A single, visible discharge of lightning.

A conventional representation of a lightning bolt as a zigzag line.

A conventional representation of a lightning bolt in heraldry or in artistic depictions of thunder gods, for example as a winged and barbed torch.


RCD

residual-current device
residual-current device#English


dirty thunderstorm

dirty thunderstorm (plural dirty thunderstorms)

A weather phenomenon that is related to the production of lightning within a volcanic plume.


counterphase

(electrical engineering, physics) That have phase difference of around 180°, or π


synphase

(electrical engineering, physics) That have the same or close phase; that have phase difference of about 0.


effective nuclear charge

effective nuclear charge (plural effective nuclear charges)

On the other hand, many concepts on atomic structure (energy levels, ionization potentials, electronegativity of the elements, and so on) are discussed in terms of effective nuclear charges.

1999 September, O. Sala, K. Araki, L. K. Noda, “A Procedure to Obtain the Effective Nuclear Charge from the Atomic Spectrum of Sodium”, in Journal of Chemical Education, volume 76, number 9, page 1269:

(chemistry) The net nuclear charge that an electron in an atom experiences, after subtracting the nuclear charge shielded by other electrons.


arsonate

(inorganic chemistry) The oxyanion HAsO₃²⁻, derivatives, or any salt containing this ion


arsanylium

(inorganic chemistry, organic chemistry) Alternative form of arsanylium ion


anionoid

Describing the anionic part of a zwitterion


cationoid

Describing the cationic part of a zwitterion


downstrike

Besides forming new cores, arcs may also form branches, and "downstrikes" are liable to be particularly troublesome.

1959, Electrical Times - Volume 135, page 355:

When a downstrike is established, the longer arc in parallel dies away rapidly and the process appears on oscillograms as a sudden reduction in arc voltage.

1959, Proceedings of the Institution of Electrical Engineers:

This was prevented by reducing the space between the plates in that portion of the chute, so that when downstrikes occurred tie new arc core remained under control and returned up into the chute again.

1959 -, The Electrical Review - Volume 164, Issues 10-17, page 447:

These "downstrikes" were recorded with an electromagnetic oscillograph and a high-speed camera, and now a good correlation exists between the two records.

1962, Transactions of the American Institute of Electrical Engineers, page 204:

(electrical engineering) A (usually unintended) branch of current that arcs downward to ground.


war of the currents

(historical) A series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s.


battle of the currents

war of the currents
war of the currents#English


cetylpyridinium

(organic chemistry, pharmacology) A cetyl derivative of the pyridinium cation that is the basis of several cationic disinfectants


electrical engineer

electrical engineer (plural electrical engineers)

Back-formation from electrical engineering.

back-form

electrical engineering
electrical engineering#English

Someone who specializes in electrical engineering.


electrotomy

(surgery) The cutting of tissue by means of high frequency electric current


isoquinolinium

en-noun

isoquinolinium (countable and uncountable, plural isoquinoliniums)

From iso- + quinolinium or isoquinoline + -ium.

(organic chemistry) The cation formed by protonation of an isoquinoline


uninterruptible power supply

uninterruptible power supply (plural uninterruptible power supplies)

Examples of emergency power supplies include a storage battery or group of batteries, a generator driven by a fuel-supplied prime mover, or an uninterruptible power supply (UPS) […].

2009, Geoff Craighead, High-Rise Security and Fire Life Safety, page 357:

This upgrade comes after the installation of a $50,000 uninterruptible power supply system to compliment the facilities independent power supply.

electrical engineering
electrical engineering

(electrical engineering) A device or system that almost instantaneously provides emergency power in the case that main power fails.


cation-π

From cation + translingual π, where π is from π system. Aromatic residues are called π systems because they contain a lot of π links, links between p electrons.

compound

translingual <i class="Grek mention" lang="mul">π</i>

(organic chemistry, physical chemistry) A noncovalent interaction between a cation, a positive ion like Li⁺ or Na⁺, and an aromatic residue such as benzene, ethylene, acetylene.


cation-pi

(organic chemistry, physical chemistry) Synonym of cation-π


subfeed

(electrical engineering) A part of an electricity or antenna feed.


electrostatic force

en-noun

electrostatic force (plural electrostatic forces)

Relation between electrostatic force and variation of electric potential.—§ 7, otherwise stated, is equivalent to this:—the average component electrostatic force in the straight line of air between two points in the neighborhood of an electrified body is equal to their difference of potentials divided by their distance.

1860 November 22, William Thompson, “Measurement of the electromotive force required to produce a spark in air between parallel metal plates at different distances”, in Proceedings of the Royal Society of London, volume X, page 336:

Coulomb’s law describes the electrostatic forces exerted between pairs of charges, but practical situations are rarely that simple.

1995, Joseph M. Crowley, “Electrostatic fundamentals”, in Jen-Shih Chang, Arnold J. Kelly, Joseph M. Crowley, editors, Handbook of Electrostatic Processes, page 10:

(electricity) Coulomb force, the attraction or repulsion between particles based on their electric charge.


high-voltage transmission line

high-voltage transmission line (plural high-voltage transmission lines)

high-voltage transmission lines (plural)

Overhead transmission line from the power station to a transmission substation.


power to gas

(electricity) The storing of generated electrical power as a gaseous substance, usually by electrolyzing water into hydrogen and oxygen gases and carbonizing the hydrogen into methane gas.


triangulenium

(organic chemistry) A carbenium ion derived from a triangulene


faradocontractility

The tendency of muscles to contract under the influence of an induced electric current


MCB

Initialism of miniature circuit breaker.


residual-current device

residual-current device (plural residual-current devices)

(electricity) An automatic circuit breaker that rapidly disconnects an electric circuit when the imbalance of the currents going through it exceeds a specific value.

etengailu diferentzial

a device that breaks an electric circuit

dispositif différentiel à courant résiduel


power electronics

(electricity) A technology and engineering field within electronics, concerning electric power delivery and distribution.


hydro pole

From hydroelectric, because utility poles in Canada commonly belong to hydroelectric companies.


dry lightning

Lightning strikes that occur when there is no rain, thus a common cause of bushfires or forest fires.


fulgural

en-adj

fulgural (comparative more fulgural, superlative most fulgural)

more fulgural (comparative)
most fulgural (superlative)

From Latin fulguralis, from fulgur (“lightning”) + -ālis (“-al: forming adjectives”), from Proto-Italic reconstructed as *folgos and related to the idea of flashing or lightening.

The Fulgural Books were an Etruscan guide to understanding the will of the gods through their supposed messages in lightning.

(uncommon) Of or related to lightning, particularly (historical) in reference to its use in divination.


energy vampire

(informal) A device or appliance that uses electricity even while switched off.


solar-powered

Network Rail and Avanti West Coast have installed a solar-powered 'electronic scarecrow' to deter birds from entering Longsight depot in Manchester.

2020 September 23, “Network News: Longsight depot uses 'scarecrow'”, in Rail, page 26:

Of an engine, vehicle, device, etc., deriving its energy from sunlight through the use of solar cells.


power cable

(electricity) An insulated cable which carries electrical current.


power lead

(British, electricity) a power cable or power cord which connects an appliance or other electrical device to the mains.


lightning strike

en-noun

lightning strike (plural lightning strikes)

A lightning bolt, stroke of lightning, one of the events during an electrical storm when lightning strikes (an object on) the ground or an aircraft in flight.


power failure

Sadly, some modern rolling stock engineers must hang their heads in shame after the recent power failures on Thameslink, where trains had to be reset by technicians after the supply frequency wandered off the 50hz.

2019 October, Ian Walmsley, “Cleaning up”, in Modern Railways, page 43:

(electricity) An unscheduled or accidental break in the supply of electricity.

sähkökatko

power failure — see also power cut, outage, blackout


ohmic resistance

ohmic resistance (countable and uncountable, plural ohmic resistances)

(electricity) That portion of the apparent resistance or impedance of a circuit which depends only upon the dimensions of the conductors, their temperature, and the materials of which they are composed.


specific resistance

specific resistance (plural specific resistances)


VCB

(electrical engineering) A vacuum circuit breaker.


mercury arc rectifier

mercury arc rectifier (plural mercury arc rectifiers)

The secondary winding is laid in four coils, one on top of the other, with oil passages round the laminated-steel core; its 2,770V a.c. output is converted to 1,970V d.c. by four air-cooled mercury arc rectifiers, which feed each pair of 975V traction motors through a smoothing choke.

1961 March, “Interim report on the Glasgow suburban electric train failures”, in Trains Illustrated, page 175:

Additionally, semi-conductor rectifiers are far more economical of space, with the result that there is room in the Doncaster-built locomotives employing them for rheostatic braking apparatus within the weight and dimensions previously needed for mercury-arc rectifiers.

1961 December, “Talking of Trains: The 25kV rolling stock”, in Trains Illustrated, page 708:

(electrical engineering) A rectifier which converts alternating current to direct current, using a cathode tube with a pool of liquid mercury. Now superseded by solid-state rectifiers.


fourth rail

It was the only line to operate by means of the third-rail system (as distinct from the fourth-rail system now universal on all London's Underground railways) and its coaches were of different design and appearance from those on other systems.

1948 January and February, C. R. L. Coles, “The Grouping Era”, in Railway Magazine, page 21:

The railway used the 'Third Rail' system of electrification, like all the early Tubes. (But it would soon be replaced across the network by another system even more exciting - Fourth''' Rail!)

2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 103:

(rail transport) An extra rail in addition to the third rail (live rail) which is used for current return purposes, mainly by London Underground, because of problems caused by using the running rails for current return underground.


sub-station

They form part of the vast electrification and reconstruction schemes which have been in hand for a number of years at Liverpool Street, and in suburban Essex, and include the rearrangement of tracks, of which the Ilford flyover forms part; the modern signal boxes, now needed only at key points; the electric control or sub-stations; and a large electric car shed.

1951 January, R. A. H. Weight, “A Railway Recorder in Essex and Hertfordshire”, in Railway Magazine, page 44:

The stations, lifts and trains were all brightly lit with electricity, and there was no question of voltage drop from being too far from the source of the power because the Central was the first line long enough to justify the building of sub-stations along the route.

2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, pages 118–119:

(electricity) Alternative form of substation.


return path

The inner, or negative, rail is also known as the 'current return' rail, because electrical current needs a circuit - a return path to earth, in other words.

2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 136:

One rail (known as the traction return rail) is not broken into [track circuit] sections as it provides the return path for the current.

2023 November 15, Prof. Jim Wild, “This train was delayed because of bad weather in space”, in RAIL, number 996, pages 30-31:

(electricity) The route by which a current or signal returns to its source, or to earth.


dimethylarsinate

(organic chemistry) The anion (CH₃)₂As(O)OH or a salt thereof.


arsinate

(inorganic chemistry) The anion H₂AsO₂⁻, or one of its derivatives formed by substituting the hydrogen with an organic chemical group, or a salt thereof. It has arsenic formally in a +1 oxidation state.


black start

(electrical engineering) The process of restoring an electric power station or part of an electric grid to operation without relying on the external electric power transmission network.

pimeäkäynnistys

restoring a power station or part of a grid without relying on an external network


tetraanion

(chemistry) An anion that has four negative charges


series-wound

A motor car is provided with two self-ventilated series-wound G.E.C. traction motors, each having a continuous rating of 80 h.p. at 575 V. 116 A. at a field strength of 66 per cent.

1960 February, “The first of London's new Piccadilly Line trains is delivered”, in Trains Illustrated, page 94:

(electrical engineering) Of an electric motor, having the windings connected in series.


neutral section

neutral section (plural neutral sections)

When a driver approaches a neutral section separating sections of 25 kV. and 15 kV. overhead catenary, he trips the main circuit-breaker but keeps his pantographs up; as soon as the next section of live wire is reached, he re-sets his contact-breaker, whereupon voltage-sensitive relays automatically make appropriate connections to the auxiliary circuits.

1960 March, “Silicon Rectifiers for a French dual-frequency Bo-Bo locomotive”, in Trains Illustrated, page 166:

(rail transport, electrical engineering) A dead section of overhead line for supplying power to trains between two live sections, used to separate two power supplies, different phases and supply voltages.


fork lightning

fork lightning (usually uncountable, plural fork lightnings)

It did not occur to him to be afraid of the vivid fork lightning or the loud thunder that reverberated down the valley.

1959, Moore Raymond, Smiley Roams the Road, London: Hulton Press, page 131:

Lightning that contains bolts that branch.


forked lightning

forked lightning (usually uncountable, plural forked lightnings)


load bank

Electric locomotives [...] Class 84: 84009 was taken on by the Derby RTC as a load bank locomotive in August 1978, [...]. It lasted in this role until December 1992 and was scrapped exactly three years later.

2020 July 1, Pip Dunn, “Department store”, in Rail, page 92:

(electrical engineering) A piece of electrical test equipment used to simulate an electrical load, to test an electric power source without connecting it to its normal operating load.


dynostarter

The diesel engine is mounted forward of the transmission with the dynostarter coupled to an auxiliary drive at the rear of the transmission.

1960 June, “The N.B. Loco. Co. diesel-hydraulic Type "2" locomotive”, in Trains Illustrated, page 345:

(electrical engineering) A dynamo which is also a starter motor.


wire nut

A hollow cone-shaped device with a conductive interior and an insulating exterior (usually plastic) applied over two (or more) wires (5mm or less) twisted together to make an electrical connection.


commutatorless

Among the projects in which the B.T.C. and private firms have a common interest is the development of a satisfactory commutatorless motor; commutation difficulties with rectified d.c. for the motors of the 25 kV. a.c. multiple-unit stock, for example, have led to many experiments with and modifications of the inter-pole magnetic circuit.

1961 February, R. K. Evans, “The role of research on British Railways”, in Trains Illustrated, page 95:

(electrical engineering) Without a commutator.


dual-frequency

Trials with three experimental dual-frequency mixed-traffic locomotives intended for use on the Saar's 15kV 16⅔-cycle (German) and 25kV 50-cycle (French) lines have proved so successful that the German Federal Railway is contemplating the construction of a fleet of 20 to 25 similar machines.

1961 May, “New European motive power: I - German dual-voltage locomotives”, in Trains Illustrated, page 305:

(electrical engineering) Able to operate on two different electrical frequencies.


rotary switch

A close-up of the very compact desk unit for control of the East Finchley programme machine from Leicester Square; the rotary switches at the top are used to set up the train number of any service to be added or cancelled.

1961 October, “More programme machines for L.T. Northern line”, in Trains Illustrated, page 625, photo caption:

(electrical engineering) A switch that is operated by turning a knob.


crimping tool

(electricity) A tool used to crimp, to join two pieces of metal.


ground wire

(electricity) A wire that connects a circuit to ground.


regenerative braking

Dead-man's handle, automatic train stop, quick-acting compressed-air brake specially suited for high-speed working, and regenerative braking are among the features of the new locomotives.

1947 March and April, “Swiss High-Speed Electric Locomotives”, in Railway Magazine, page 94:

Regenerative braking, whereby the car's kinetic energy is fed back to the supply line, has recently been introduced on the Kei-Han-Shin Kyuko Railway's commuter services feeding Osaka, instead of resistor braking, and on 52 lightweight cars built in 1960 and 1961 advantage has been taken of this feature to install constant speed controls.

1962 December, “Constant-speed electric multiple-units in Japan”, in Modern Railways, page 404:

Regenerative braking is retained. Like rheostatic braking, this uses the traction motors to provide a braking effort, but the current developed is fed back into the overhead catenary rather than dissipated through resistance banks.

2023 July 26, David Clough, “Technology progression defines Class 93”, in RAIL, number 988, page 54:

(rail transport, automotive, electrical engineering) A form of braking used on some electric vehicles in conjunction with the main braking system, where kinetic energy from braking is converted into electricity and fed back into the power supply by using the traction motors as generators.


wire stripper

A small, hand-held device used to strip the electrical insulation from electric wires.

клещи заголвачки

small device to strip the insulation from electric wires


Biefeld-Brown effect

Named by inventor Thomas Townsend Brown after himself and astronomy professor Paul Alfred Biefeld, his former teacher and possibly co-experimenter.

An electrical phenomenon that produces an ionic wind that transfers its momentum to surrounding neutral particles, observed on an asymmetric capacitor when high voltage is applied to the electrodes.


double E

From having two Es in the initialism, thus doubled up.

electrical engineer
electrical engineer#English

(electrical engineering) Abbreviation of electrical engineer.

Alternative form of EE
Abbreviation of electrical engineer.

(electrical engineering) Abbreviation of electrical engineering.

Alternative form of EE
Abbreviation of electrical engineering.

(electrical engineering) Abbreviation of degree (diploma) in electrical engineering.


hydrion

(dated, chemistry, physics) proton (positive hydrogen ion)


peak shaving

(electricity) The management by a utility of its demand for electricity over time, to reduce spikes in usage.


time switch

A time switch with astronomical adjustment switches the warning signs on at sunset.

1939 November, “Pertinent Paragraphs: Traffic Lights at Crossings on Manx Electric Railway”, in Railway Magazine, page 361:

(electrical engineering) A switch activated automatically at a preset time.


Old Sparky

[…]and I think that, for most of those men, the truth of what was happening to them finally hit all the way home when their ankles were being clamped to the stout oak of “Old Sparky’s” legs.

1996, Stephen King, The Green Mile, page 3:

(US, slang) Nickname for an electric chair used for executions.


triazatriangulenium

(organic chemistry) A carbenium ion derived from triangulenium by replacing three >CH₂ groups by >N-R


BIPV

(electricity, construction) Initialism of building-integrated photovoltaic.


dermatoelectrical

Relating to the electrical properties of skin


array cable

Any of a set of submarine power cables connecting wind turbines in an offshore wind farm.


From vehicle-to-load technology, the capability of battery electric vehicles to provide power to electric appliances.

(countable and uncountable, automotive, electricity) Abbreviation of vehicle-to-load.


leakage current

leakage current (plural leakage currents)

(electricity) The current that flows through the grounding to earth.


arc resistance

The ability of an insulating material to withstand high voltage electric arc.


combined cycle power plant

combined cycle power plant (plural combined cycle power plants)

A power plant that uses both natural gas and steam to have higher efficiency of power generation from the same amount of fuel.


vampire draw

But turning it off can lower the player's energy vampire draw to less than a third of a watt, […]

2009, Joe Hutsko, Green Gadgets For Dummies, page 226:

The continuous drawing of power from the electricity supply by devices that are left plugged in on standby.


breakdown voltage

The minimum voltage that causes part of an insulator to become electrically conductive.


Reionization

Ages of the Universe
Ages of the Universe#English

(cosmology) The epoch of reionization of the Universe, where matter decoupled from energy, and space became transparent to radiation. One of the Ages of the Universe. The cosmic era when ultraviolet radiation of the first (Population III) stars and quasars ionized neutral hydrogen, ending the Cosmic Dark Age(s).


electrical breakdown

Condition when an electrical insulator suddenly becomes conductive when the applied electric field exceeds the dielectric strength of the insulator.


dielectric strength

electrical breakdown
electrical breakdown

The minimum applied electric field that results in the electrical breakdown of a dielectric material.


partial discharge

A localized electrical breakdown of a small portion of a solid or fluid electrical insulator when being applied to high voltage.


dielectric withstand test

dielectric withstand test (plural dielectric withstand tests)

An electrical test performed on an electrical insulator to determine the strength of its insulation by applying high voltage to an item and monitor leakage current.


hipot tester

dielectric withstand test
dielectric withstand test

A device used to perform dielectric withstand test.


cable joint

(electricity) Connection between two power cables with proper insulation and mechanical protection.


SBPS

(electricity) Initialism of standby power system/supply.


SAPS

(electricity) Initialism of stand-alone power system/supply.

(electricity) Initialism of standalone photovoltaic system/supply.


electrical treeing

electrical pre-breakdown
electrical breakdown

The electrical pre-breakdown damaging phenomenon in solid insulation due to partial discharge, progressing through stressed dielectric insulation in a path resembling the branches of a tree.


McIntire joint

(electrical) An electrical connection spliced together by means of a sleeve (double tube of copper for this purpose).


hourly rating

The year 1926 saw the putting in service of the first of the magnificent 1-Co-Co-1 locomotives of Type Ae 6/8, which at the time of their construction, with their hourly rating of 4,500 h.p., were the most powerful single electric locomotive units in the world.

1960 December, Cecil J. Allen, “Operating a mountain main line: the Bern-Lötschberg-Simplon: Part One”, in Trains Illustrated, page 743:

(electrical engineering, rail transport) A measure of the maximum output, usually expressed in horsepower, that can be obtained from the motors of an electric locomotive for a period of one hour without the motors overheating.