f

Modification of upper case Latin letter F, from Greek Ϝ (W, “Digamma”), from Phœnician 𐤅 (W, “waw”), the ultimate source being probably Egyptian.


A

(chemistry, obsolete) Symbol for the element Argon, changed after 1956 to Ar.


A

(biochemistry) IUPAC 1-letter symbol for alanine in proteins.


i

head

i (lower case Roman numeral, upper case I)

Lower case form of upper case Roman numeral I, apparently derived from the shape of a notch scored across a tally stick.


RJ

(astronomy) Jovian radius: a unit of measurement, equal to the radius of Jupiter.


ML

(astronomy) Lunar mass: a unit of measurement, equal to the mass of the Moon.


b

Pronunciation of IPA [bɑː, ɑbbɑː] with the sound [b]

Modification of capital letter B by dropping its upper loop, from the Greek letter Β (“Beta”).


m

Pronunciation of IPA [mːɑː, ɑmmɑː] with the sound [m]

(music) mezzo, as in mezzo piano and mezzo forte


z

Pronunciation of IPA [zɑː, ɑzzɑː] with the sound [z]


c

(oceanography, meteorology) The speed of a fluid wave (water or air).


u

Pronunciation of IPA [uː]


e

Close-mid front unrounded vowel
e
e (mathematical constant

Pronunciation of IPA [eː]

Modification of capital letter E in uncial script, from Ancient Greek Ε (E, Epsilon).


綪

Han char

綪 (Kangxi radical 120, 糸+8, 14 strokes, cangjie input 女火手一月 (VFQMB), four-corner 2592₇, composition ⿰糹青 or ⿰糹靑)

女火手一月 (cangjie-input)
⿰糹青 (composition)
⿰糹靑 (composition)


靝

靝 (Kangxi radical 174, 靑+10, 18 strokes, cangjie input 手月人弓木 (QBOND), composition ⿰青氣)


XL

(chiefly clothing) extra large (the manufactured size)


Pm

(metrology) Symbol for petameter (petametre), an SI unit of length equal to 10¹⁵ meters (metres).


Tm

(metrology) Symbol for terametre, an SI unit of length equal to 10¹² metres.


Rn

(chemistry, physics) radon; ²²²₈₆Rn (radon-222); an isotope of radon, used when radon-220 is called thoron (Tn) and radon-219 is called actinon (An)


A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ६ (6)). See 6 § Evolution of the Hindu-Arabic digit for more.

(music, superscript) an indicator that a triad is in first inversion.


A West Arabic numeral, ultimately from Indic numerals (compare Devanagari ७ (7)). See 7 § Evolution of the Arabic digit for more.

(music, superscript) an indicator that a chord is a dominant or major seventh chord


From Italian ottava (“octave”). Since the 20th century, the "a" has sometimes been interpreted as representing alta in Italian ottava alta (“octave higher”); compare 8vb.

(music) An instruction to play one octave higher or lower than indicated.


(astronomy, rare) The symbol for the constellation Aries.


A stylized representation of a scorpion with a stinging tail.

(astronomy, rare) The symbol for the constellation Scorpius.


A (copper/bronze) handmirror, symbol of the Greek goddess Aphrodite (and her Roman equivalent Venus). The cross was added in the 16th century to Christianize the symbol of a pagan god.


Curved single quotation marks and apostrophes

Straight single quotation mark and apostrophe

(music) A pointing mark in Anglican chant, used as a placeholder in the text to indicate that a bar of the chant should be omitted; typically used when a verse or half-verse is very short.


Use as a multiplication sign is usually attributed to English mathematician William Oughtred.

Russ Millions × Tion Wayne

BAPE × Stüssy

2022 July 23, Gargi Harjai, “Where to buy the John Richmond × Playboy collection? Price, release date, and more explored”, in Sportskeeda (in English):

(music, fashion, etc.) Used to denote collaboration in the design, execution or branding of a piece.


(music) A pointing mark in Anglican chant, which marks a place in the text where an extra breath should be taken, resulting in a brief pause.


NO

(chemistry) The molecular formula for nitric oxide.


ॐ

om or aum: the sacred syllable and mantra in Hinduism, Buddhism, Jainism and Sikhism


(Christianity, astronomy): A globus cruciger (the globe surmounted by a Christian cross), representing Christ's or the Church's rule over the redeemed world. Alchemical extension to newly-discovered antimony, motivated by an attempt to retain an association between the basic metals and the known planets. Astronomical use is reinforced by the graphic similarity to the symbol ⟨♀⟩ for Venus, which is the planet that is most similar to Earth.

(astrology, rare) the fictitious planet Proserpina, which one Polish school of astrology identifies as the dwarf planet Eris.


The lunar crescent is an ancient symbol for the moon.
Its orientation varies between increscent and decrescent.

rarely 🌙. In the medieval Marcianus graecus 299 manuscript

(astronomy, astrology, rare) The last quarter of the Moon.

graphical user interface
graphical user interface

(graphical user interface) Night mode: a colour scheme with light text on a dark background.


A simple caduceus (☤) of the Greek god Hermes (and his Roman equivalent Mercury), as seen with a much longer staff in stylized representations of that god e.g. on pottery. The cross was added in the 16th century to Christianize the symbol of a pagan god.


The circle and arrow represent the shield and spear, respectively, of the Ancient Greek god of war Ares (and his Ancient Roman equivalent Mars). In the Medieval era the spear had crossed in front of the shield, and the ancient form lacked the shield altogether.


(music) A pointing mark in Anglican chant, which marks a place in the text where a barline occurs in the chant.


α

alpha

for names of this symbol in other language

(astronomy) Used to identify some bright star, usually the brightest star, of a constellation, for instance α-Centauri.


α

Coordinate term: δ


Oceanus

(planetology) A large mare region on the Moon.


Asp

(biochemistry) IUPAC 3-letter abbreviation of aspartic acid


Ar

relative atomic mass
relative atomic mass

(chemistry) The relative atomic mass of an element.


Ba

After pronunciation of Mba (“Mba island”) in New Caledonia, motivated by bah humbug

A taxonomic genus within the family Charopidae – sole known species is Ba humbugi, a small air-breathing land snail.


Ba

(physics) The CGS symbol for barye, unit of pressure.


Ala

(biochemistry) IUPAC 3-letter symbol for alanine


Bi

(electricity, physics) biot (“abampere”)


Ca

Moody's Investors Service
w:Moody's Investors Service

(finance) Long-term bond credit rating by Moody's Investors Service, indicating that a bond is extremely speculative and possibly in default, with some prospect of debt recovery.


Cannabis

From Latin cannabis, from Ancient Greek κάνναβις (kánnabis).

A taxonomic genus within the family Cannabaceae – hemp.


Chaos

From Latin chaos (“chaos”), from Ancient Greek χάος (kháos).

(astronomy) A planetoid and cubewano orbiting in the Kuiper belt.


Hg

From the New Latin hydrargyrum (“mercury”), form of hydrargyrus, from Ancient Greek ὑδράργυρος (hudrárguros, “quicksilver”), from ὕδωρ (húdōr, “water”) (whence hydro-) + ἄργῠρος (árguros, “silver”) (cognate to Ag (“symbol for silver”)). Compare quicksilver.


His

(biochemistry) IUPAC 3-letter abbreviation of histidine


Ile

(biochemistry) IUPAC 3-letter abbreviation of isoleucine


Leu

(biochemistry) IUPAC 3-letter abbreviation of leucine


Lys

(biochemistry) IUPAC 3-letter abbreviation of lysine


Mg

(metrology) Symbol for megagram, an SI unit of mass equal to 10⁶ grams.


Met

(biochemistry) IUPAC 3-letter abbreviation of methionine


Peg

(astronomy) Abbreviation of Pegasus or its genitive form Pegasi.


Pro

(biochemistry) IUPAC 3-letter Abbreviation of proline.


Ser

(biochemistry) IUPAC 3-letter abbreviation of serine


Te

(chemistry) Symbol for the element tellurium.


Une

(chemistry) unnilennium, the former name of meitnerium.


Val

(biochemistry) IUPAC 3-letter abbreviation of valine


Uno

Abbreviation of New Latin unniloctium n.

(chemistry) Symbol for unniloctium, the former name of hassium.


Mc

Abbreviation of moscovium. From Russian Москва́ (Moskvá, “Moscow”)

(chemistry) Symbol for moscovium (element 115, provisionally ununpentium).


F

From the Etruscan letter 𐌅 (v, “ve”), from the Ancient Greek letter Ϝ (W, “digamma”), derived from the Phoenician letter 𐤅 (w, “waw”), from the Egyptian hieroglyph 𓏲.

(biochemistry) IUPAC 1-letter abbreviation for phenylalanine


B

(biochemistry) As an IUPAC code for amino acids, aspartic acid or asparagine.


L

From the Etruscan letter 𐌋 (l, “el”), from the Ancient Greek letter Λ (L, “lambda”), derived from the Phoenician letter 𐤋 (l, “lamed”), from the Egyptian hieroglyph 𓌅.

(biochemistry, IUPAC 1-letter abbreviation) leucine

(astronomy, physics, measurement, cgs) lambert

(usually clothing) large (the manufactured size)


D

* (chemistry, deuterium): abbreviation of deuterium
* (computing, hexadecimal 13): From its position as the thirteenth element of the series {1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F}
* (Germany): abbreviation of German word Deutschland (“Germany”)

(biochemistry) IUPAC one-letter abbreviation for aspartic acid.


G

From a modification of the Latin letter C (“ce”), from the Etruscan letter 𐌂 (c, “ce”), from the Ancient Greek letter Γ (G, “gamma”), derived from the Phoenician letter 𐤂 (g, “giml”), from the Egyptian hieroglyph 𓌙.

(music) The major chord with a root of G.


E

From the Etruscan letter 𐌄 (e, “e”), from the Ancient Greek letter Ε (E, “epsilon”), derived from the Phoenician letter 𐤄 (h, “he”), from the Egyptian hieroglyph 𓀠.

(biochemistry) IUPAC 1-letter abbreviation for glutamic acid


R

From the Etruscan letter 𐌓 (r, “er”), from the Ancient Greek letter Ρ (R, “rho”), derived from the Phoenician letter 𐤓 (r, “reš”), from the Egyptian hieroglyph 𓁶.

(biochemistry) IUPAC 1-letter abbreviation for arginine.


C

* (element symbol, carbon): abbreviation
* (metrology, coulomb): abbreviation
* (computing, hexadecimal 12): From its position as the twelfth element of the series {1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F}

(biochemistry) IUPAC 1-letter abbreviation for cysteine


N

From the Etruscan letter 𐌍 (n, en), from the Ancient Greek letter Ν (N, nu), derived from the Phoenician letter 𐤍 (n, nun), possibly from the Egyptian hieroglyph 𓆓.

(biochemistry) IUPAC 1-letter abbreviation for aspargine

(music) Neapolitan chord (usually in first inversion, therefore followed by a superscript six)


P

From the Etruscan letter 𐌐 (p, “pe”), from the Ancient Greek letter Π (P, “pi”), derived from the Phoenician letter 𐤐 (p, “pe”), from the Egyptian hieroglyph 𓂋.

(biochemistry) IUPAC 1-letter abbreviation for proline

(computer science) class of problems solvable in polynomial time


V

From the Etruscan letter 𐌖 (u, “u”), from the Ancient Greek letter Υ (U, “ypsilon”), derived from the Phoenician letter 𐤅 (w, “waw”), from the Egyptian hieroglyph 𓏲. Doublet of Y and U.

(biochemistry) IUPAC 1-letter abbreviation for valine

(organic chemistry) The resin identification code for polyvinyl chloride, also PVC.


T

From the Etruscan letter 𐌕 (t, “te”), from the Ancient Greek letter Τ (T, “tau”), derived from the Phoenician letter 𐤕 (t, “taw”), from the Egyptian hieroglyph 𓏴.

(biochemistry) IUPAC 1-letter abbreviation for threonine


Z

From the Etruscan letter 𐌆 (z, “ze”), from the Ancient Greek letter Ζ (Z, “zeta”), derived from the Phoenician letter 𐤆 (z, “zayin”), from the Egyptian hieroglyph 𓏭.

(biochemistry) IUPAC 1-letter abbreviation for either glutamine or glutamic acid


H

From the Etruscan letter 𐌇 (h, he), from the Ancient Greek letter Η (Ē, eta), derived from the Phoenician letter 𐤇 (ḥ, het), from the Egyptian hieroglyph 𓈈 or maybe 𓉗.

(biochemistry) IUPAC 1-letter abbreviation for histidine


U

From the Etruscan letter 𐌖 (u, “u”), from the Ancient Greek letter Υ (U, “ypsilon”), derived from the Phoenician letter 𐤅 (w, “waw”), from the Egyptian hieroglyph 𓏲. Doublet of Y and V.


Y

A late borrowing from the Ancient Greek letter Υ (U, “ypsilon”), first used to write Greek loanwords in Latin, derived from the Phoenician letter 𐤅 (w, “waw”), from the Egyptian hieroglyph 𓏲. Doublet of U and V.

(biochemistry) IUPAC 1-letter abbreviation for tyrosine


K

From the Etruscan letter 𐌊 (k, “ka”), from the Ancient Greek letter Κ (K, “kappa”), derived from the Phoenician letter 𐤊 (k, “kap”), from the Egyptian hieroglyph 𓂧.

(chemistry) Symbol for potassium (Latin kalium).

(biochemistry) IUPAC 1-letter abbreviation for lysine.

hydraulic conductivity
hydraulic conductivity

(geology) Symbol for hydraulic conductivity.


M

(astronomy) Abbreviation of Messier, used in Messier numbers.

(biochemistry) Abbreviation of methionine, as established by IUPAC.

M_☉ — solar mass; M_🜨 — terrestrial mass; M_J or M_♃ — jovian mass; M_L or M_☾ — lunar mass

(astronomy) mass of a reference body as a unit of measure

(usually clothing) medium (the manufactured size)


W

From a modification of the Latin letter V (“ve”), from the Etruscan letter 𐌖 (u, “u”), from the Ancient Greek letter Υ (U, “ypsilon”), derived from the Phoenician letter 𐤅 (w, “waw”), from the Egyptian hieroglyph 𓏲.
Its use as a symbol for tungsten is based on German Wolfram.

(biochemistry) IUPAC 1-letter abbreviation for tryptophan.


S

From the Etruscan letter 𐌔 (s, “es”), from the Ancient Greek letter Σ (S, “sigma”), derived from the Phoenician letter 𐤔 (š, “šin”), from the Egyptian hieroglyph 𓌒.

electrical conductance
electrical conductance

(metrology) symbol for siemens, a measure of electrical conductance.

(biochemistry) IUPAC 1-letter abbreviation for serine

(mathematics, computer science) The S ("substitution") combinator, defined as Sxyz = xz(yz), used in SKI calculus

(usually clothing) small (the manufactured size)


Q

English: max Q

Ancient Greek language
Egyptian language
Etruscan language
Phoenician language
Q

From the Etruscan letter 𐌒 (q, “cu”), from the Ancient Greek letter Ϙ (Q, “qoppa”), derived from the Phoenician letter 𐤒 (q, “qop”), from the Egyptian hieroglyph 𓃻.

(biochemistry) IUPAC 1-letter abbreviation for glutamine.


O

From the Etruscan letter 𐌏 (o, “o”), from the Ancient Greek letter Ο (O, “omikron”), derived from the Phoenician letter 𐤏 (ʿ, “ʿayin”), from the Egyptian hieroglyph 𓁹.

(linear algebra, group theory) orthogonal group


RV

Initialism for German Ryom-Verzeichnis (“Ryom-Catalog”).

(music) Initialism, used in combination with a reference number to indicate a particular work of music by Antonio Vivaldi according to a catalog originally assembled by Danish musicologist Peter Ryom.


NWA

(planetology, geology) Abbreviation of northwest Africa.


I

From the Etruscan letter 𐌉 (i), from the Ancient Greek letter Ι (I, iota), derived from the Phoenician letter 𐤉 (y, yod), from the Egyptian hieroglyph 𓂝.

(biochemistry) IUPAC 1-letter abbreviation for isoleucine

(inorganic chemistry) Specifying an oxidation state of 1


AT

astronomical transient
astronomical transient#Translingual

(astronomy) Abbreviation of astronomical transient.; prefix for astronomical transients in official IAU astronomical event and object notation. The International Astronomical Union (IAU) is the official international arbiter of naming of astronomical objects and events in the field of astronomy.


(inorganic chemistry) The molecular formula for ammonia.


EET

Elephant Moraine
Elephant Moraine#Translingual

(planetology, geology) Abbreviation of Elephant Moraine.


head

† (English symbol name dagger or obelus)

dagger (English name symbol)
obelus (English name symbol)

Derives from the obelus, ⟨⸓⟩. Originally shaped like a dagger, it is now sometimes identical in shape to a Latin cross.

(music) A pointing mark in Anglican chant, used in the margin to indicate a nonstandard place where a verse should be sung with the second part of a two-part chant; typically used for the final verse of a psalm with an odd number of verses.


Λ

cosmological constant
cosmological constant


δ

Coordinate term: α


Δ

(music) Used after a pitch class to denote a major seventh chord with a note of said pitch as its root.


D.C. al fine

(music) Repeat from the beginning to the end, or to the word "fine".


NB - Pronunciation of Norwegian Bokmål «A7».ogg

(music) The dominant seventh chord on A, formed by the notes A, C♯, E and G, also written as A⁷.


Tyr

(biochemistry) IUPAC 3-letter abbreviation of tyrosine


From Italian quindicesima (“fifteenth”). Since the 20th century, the "a" has sometimes been interpreted as representing alta in Italian quindicesima alta (“fifteenth higher”); compare 15mb.

der

(music) An instruction to play two octaves higher than indicated.


Angelina

(astronomy) An asteroid in Asteroid Belt, Solar System; a main belt asteroid.


NEA

(planetology, geology) Abbreviation of northeast Africa.


planum

(astronomy, planetology, planetography, astrogeography, astrogeology) an elevated plain or plateau on a moon or planet


Andromeda Galaxy
Andromeda Galaxy#English

(astronomy) Abbreviation of Messier 31, the Messier number designation of the Andromeda Galaxy.


(astronomy) Abbreviation of Messier 13, the Messier number designation of the Great Globular Cluster of a few hundred thousand stars in the constellation of Hercules.


Triangulum Galaxy
Triangulum Galaxy#English

(astronomy) Abbreviation of Messier 33, the Messier number designation of the Triangulum Galaxy.


NGC

New General Catalogue
New General Catalogue#English

(astronomy) Initialism of New General Catalogue (a catalogue of deep-sky objects), used as a prefix for entries in this catalogue.


(astronomy) Abbreviation of Messier 42, the Messier number designation of the Orion Nebula.


(astronomy, rare) The symbol for the constellation Gemini.


The horns may curve up and then out again

forming a half circle like a digit 8 with the top removed

(astronomy, rare) The symbol for the constellation Taurus.


A stylized representation of a lion's head and tail.

(astronomy, rare) The symbol for the constellation Leo.


(astronomy, rare) The symbol for the constellation Sagittarius.


A stylized representation of the chimeric capricorn (head and forelegs of a goat, curling tail of a fish).

(astronomy, rare) The symbol for the constellation Capricornus.


(astronomy, rare) The symbol for the constellation Cancer.


The curve in the top stroke may vary from a capital Ω-shape to a small bump

The bottom horizontal line is sometimes omitted

making it identical to some forms of ⟨🝇⟩. The lines may

may not end in serifs. Cursive form ⟨🝠⟩.

(astronomy, rare) The symbol for the constellation Libra


A pair of fish; the stroke joining them is relatively recent.

(astronomy, rare) The symbol for the constellation Pisces.


Unknown, but it has been suggested that the symbol derives from a letter M for (the Virgin) Mary in the Middle Ages, though the sign had earlier been identified with the goddess Ceres/Demeter. It has also been suggested to be a ligature of Greek παρ (par), for Ancient Greek παρθένος (parthénos, “maiden”).

with the loop crossing the second downward stroke

or have three downward strokes but with the third ending in a tail

(astronomy, rare) The symbol for the constellation Virgo.


A stylized representation of (ripples of) water.

(astronomy, rare) The symbol for the constellation Aquarius.


A monogram of the capital letters P and L, the first two letters of "Pluto" as well as the initials of Percival Lowell.

(astronomy, astrology) Pluto (as one of the nine planets).


The trident of Neptune, the Ancient Roman god of the sea.

– the symbol commonly has barbs on the tines

– orbed variant common in German-language sources alongside ⟨♁⟩ for the Earth and ⟨⛢⟩ for Uranus

so that most of the planetary symbols contain an orb

sometimes with horizontal barbs on the outer tines so that those look like an inverted omega

this form of Neptune's trident was used by Newton as a symbol for bismuth

before the planet Neptune had been discovered. Typefaces that use this form may harmonize it with Jupiter so that it looks like ⟨⟩ reflected on itself.

Ψ

Greek capital letter psi is sometimes used as a typographic substitute.


A globe surmounted by the letter H, the initial of Herschel, the discoverer of Uranus ('planet Herschel').

A multiple star, the beautiful trapezium in the “Fish’s mouth” of the vast nebula in the middle of Orion’s sword-scabbard. A 6, pale white; B 7, faint lilac; C 7½, garnet; D 8, reddish; and E 15, blue. This was entered 1 ♅. iii., in November, 1776, and had the honour of being the object to which the grand forty-foot reflector was first directed, in February, 1787, under the designation of “quadruple.” As a trapezium it was gazed at, measured, and delineated, for upwards of fifty years, when Σ. announced it “quintuplex,” by the addition of the little star E. Now when we consider the eye of ♅., the measures of S., and the rigorous examination of H., this little companion must be looked upon as variable; […]

1844, William Henry Smyth, “θ¹ Orionis”, in Cycle of Celestial Objects, for the Use of Naval, Military, and Private Astronomers, volume the second (The Bedford Catalogue) (in English), London: John W[illiam] Parker, […], page 130:


The Greek letters kappa-rho with an abbreviation stroke at bottom, for Κρόνος (Krónos), the Greek equivalent to the Roman god Saturn. The cross at top was added later, to Christianize the symbol of a pagan god.


The Greek letter Zeta with an abbreviation stroke, for Ζεύς (Zeús), the Greek equivalent to the Roman god Jupiter. The form changed from Classical and early Medieval ⟨Ƶ⟩ to one with a more salient cross, ⟨♃⟩, in the 15th–16th century, at about the time that Christian crosses were added to ⟨☿⟩, ⟨♀⟩ and ⟨♄⟩, and so may have had a similar motivation.


DH

(inorganic chemistry) deuterium-protium, a type of hydrogen (H₂) molecule. Known as hydrogen deuteride.


RL

(astronomy) Lunar radius: a unit of measurement, equal to the radius of the Moon.


☠
 ☠☠
 ☠☠☠
☠☠☠☠
[…]
Rats to your stack,
Rags to your back,
Death on your track—

2010, Peter Haring Judd, Elizabeth Wade White Papers Catalog and Finding Aid, Volume 1 (in English), New York Public Library, →ISBN, page 321:


(organic chemistry) Alternative spelling of CH₄


The shield of the sun god Apollo, with a boss in the center. Medieval replacement of ⟨🜚⟩, the sun with a single ray, which in ancient times had replaced a sun orb surrounded by multiple rays.
Compare the Egyptian hieroglyph ⟨⟩ and the Chinese character ⟨⟩, both of which mean 'sun' and 'day'.

is sometimes seen. This does not occur in astronomy

A subscript to variables in mathematical equations, such as π_☉ (solar parallax).

Suppose the apparent angular distance of the sun & moon's nearest limbs [...] to be 110°.2′.30″ the app. alt of ☉'s lower limb measuring 20°.40′ and that of ☽'s lower limb 35°.24′

1803, Robert Patterson, The Papers of Thomas Jefferson, volume 40 (in English), Princeton University Press, published 2013, page 71:

For masses under #x5C;textstyle#x5C;frac#x7B;1#x7D;#x7B;3#x7D;☉ only one equilibrium solution exists

1939, Oppenheimer & Volkoff, “On Massive Neutron Cores”, in Physical Review, volume 55:


Ts

(metrology) Symbol for terasecond, an SI unit of time equal to 10¹² seconds.

terasecond

(chemistry, physics) tennessine (element-117; ununseptium)


Originally a lowercase b written with a square loop (the so called "square B" or "B quadratum") to distinguish from a lowercase b written with a round loop ("round B" or "B rotundum"), when the only notes used in (Western) music were what are now considered C, D, E, F, G, A, B-flat and B. The round B was used for the former and the square B for the latter. The square B was then later generalized as the symbol for non-flat notes, variants of which diverged into the modern natural and sharp signs.

(music) a natural (The cancelling of a flat "♭" or a sharp "♯")


(music) A sharp (a note one semitone higher).


Originally a lowercase b written with a round loop (the so called "round B" or "B rotundum") to distinguish from a lowercase b written with a square loop ("square B" or "B quadratum"), when the only notes used in (Western) music were what are now considered C, D, E, F, G, A, B-flat and B. The round B was used for the former and the square B for the latter. The round B was then later generalized as the symbol for flat notes.

(music) A flat; a bemol (a note one semitone lower).


Use as a multiplication or product operator is usually attributed to German polymath Gottfried Wilhelm Leibniz.

(music) A pointing mark in Anglican chant, which indicates nonstandard places in the text where the chant should change note.


PEC

Pecora Escarpment
Pecora Escarpment#Translingual

(planetology, geology) Alternative form of PCA; Abbreviation of Pecora Escarpment.


planitia

(astronomy, planetology, planetography, astrogeography, astrogeology) A low plain. Used capitalised in names of geological features on other planets


head

+ (English symbol name plus sign or plus)

plus sign (English name symbol)
plus (English name symbol)

antonym(s) of “addition or positiveness”

From a ligature of Latin et (“and”). Compare & and ⁊ of same meaning.


XS

(chiefly clothing) extra small (the manufactured size)


XXL

(chiefly clothing) extra extra large (the manufactured size)


XXS

(chiefly clothing) extra extra small (the manufactured size)


T₂

International Union of Pure and Applied Chemistry

Tritium-tritium, an isotopic variant of the hydrogen molecule H₂; diatomic tritium.

(topology) The Hausdorff property; a category of topological spaces with this property.


(music) Two eighth notes connected with a beam.


(music) Two sixteenth notes connected with a beam.


Olympus Mons

From Latin Olympus + mons, from Ancient Greek Ὄλυμπος (Ólumpos). Named in 1973 after the albedo feature Nix Olympica (“Snows of Olympus”).

(planetology) An extinct volcano and prominent feature on the planet Mars, notable as the highest mountain in the solar system (elevation: 27 kilometers).


sf

(music) sforzando; an indication to play a section of music with an initial attack.


MJ

(astronomy) Jovian mass: a unit of measurement, equal to the mass of Jupiter.


Cys

(biochemistry) IUPAC 3-letter abbreviation of cysteine


Gln

(biochemistry) IUPAC 3-letter abbreviation of glutamine


Phe

(biochemistry) IUPAC 3-letter abbreviation of phenylalanine


Trp

(biochemistry) IUPAC 3-letter Abbreviation of tryptophan.


Glu

(biochemistry) IUPAC 3-letter abbreviation of glutamic acid


Asn

(biochemistry) IUPAC 3-letter abbreviation of aspargine


Gly

(biochemistry) IUPAC 3-letter abbreviation of glycine


Thr

(biochemistry) IUPAC 3-letter abbreviation of threonine


Arg

(biochemistry) IUPAC 3-letter abbreviation of arginine


Arsia Mons

Named in 1973 after the albedo feature Arsia Silva.

(planetology) An extinct volcano on the planet Mars.


Pavonis Mons

Named in 1973 after a classical albedo feature.


Ascraeus Mons

Named in 1973 after the albedo feature Ascraeus Lacus.

HiPOD XII Iunii MMXIX: Fractura in campis inter meridiem et solis ortum spectantibus ex Ascraeus Mons et septentrionalis spectantibus ex Noctis Fossae

2019 June 12, @HiRISELatin, twitter (in Latin):


Oceanus Procellarum

Borrowed from Latin Oceanus Procellarum (literally “Ocean of Storms”). Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum novum.

coinage

(planetology) The Ocean of Storms: A basin in Nearside, Moon, Earth, Solar System; The largest mare region on the Moon.

en:Almagestum novum
en:Francesco Maria Grimaldi


Cydonia

From Latin Cydonia, a partial calque from Ancient Greek μηλοκυδώνιον (mēlokudṓnion, “quince”, literally “Cydonian apple”).

der

μηλοκυδώνιον

(planetology) An albedo feature on Mars, famous for the “Face on Mars” formation.


(music) Symbol for G seventh or dominant seventh.


A molecule of heavy water, comprising two deuterium atoms and an oxygen atom.


(organic chemistry) molecular formula for ethanoic acid, as acetic acid


DHO

(inorganic chemistry) A molecule of semi-heavy water, comprising one deuterium and one protium type of hydrogen atoms with an oxygen atom


C₂H₆

(organic chemistry) molecular formula for ethane


C₂H₄

(organic chemistry) molecular formula for ethene


C₂H₂

(organic chemistry) molecular formula for ethyne


(inorganic chemistry) The molecular formula for sulfurous acid.


(inorganic chemistry) molecular formula for disilane

trisilyl

SiH₂SiH₂SiH₃, -SiH₂SiH₂SiH₃, SiH(SiH₃)₂, -SiH(SiH₃)₂, Si₃H₇, -Si₃H₇


molecular formula
molecular formula#English

(inorganic chemistry) The molecular formula of monosilane.


D₂

Deuterium-deuterium, a type of hydrogen (H₂) molecule. In other words, dideuterium, or diatomic deuterium.


A star and crescent, and ancient symbol originally representing either the Sun and Moon or the Moon and Venus.


From a combination of the ⟨♀⟩ female, ⟨♂⟩ male, and ⟨⚨⟩ androgyne symbols.

(LGBT) transgender; transsexual; genderqueer.


(botany) Perfect (flower), hermaphrodite.

In the 1970s, gay liberation movements used the male and female symbols superimposed (⚤) to represent the common goals of lesbians and gay men. These days, the superimposed symbols might also denote a heterosexual awareness of the differences and diversity between men and women. A transgendered person might superimpose the male and female symbols in such a way that the arrow and cross join on the same single ring (⚥).

2003, Ken Cage, Moyra Evans, Gayle: The Language of Kinks and Queens : a History and Dictionary of Gay Language in South Africa (in English), Jacana Media, →ISBN, page 48:

[Xenovia has a few condoms with the symbol ⚥ interlocked with the symbol ♡ (a heart).]

2013, "Open House Begins!", episode 8 of High School DxD New

Sexual intercourse
sexual intercourse#English


(astronomy, before 16th century) The Classical and Medieval form of ⟨♀⟩, the symbol of the planet Venus.


HgS

(inorganic chemistry) chemical formula for mercuric sulfide


(typography) The Arabic star, used like an asterisk


A scythe, representing the Roman harvest goddess Ceres. Invented soon after discovery in the early 19th century. The cross at bottom recalls ⟨☿⟩ and ⟨♀⟩. The symbol was once sometimes reversed to incorporate the letter 'C' as the initial for 'Ceres'.

(astronomy, astrology) The dwarf planet and asteroid 1 Ceres.


A spear, representing the goddess Pallas Athena. Invented soon after discovery in the early 19th century. The head of the spear took on various shapes, depending on typographic convenience, including a triangle △ and a spade ♤ or inverted heart ♡, but is now usually a diamond ◇ or lozenge ◊. The cross at bottom recalls ⟨☿⟩, ⟨♀⟩, ⟨⚳⟩.

(astronomy, astrology) The asteroid 2 Pallas.

alchemical symbol for sulfur, a variant form of Athena's spear that was sometimes easier to typeset


The scepter of the Roman queen of the gods, Juno, surmounted by a star. The scepter took various forms in the 19th century, some rather elaborate, but soon the original printer's hack of an asterisk ⟨*⟩ over an inverted dagger ⟨⸸⟩ was settled on for typographic convenience.

(astronomy, astrology) The asteroid 3 Juno.


The eternal fire in the Roman temple to the goddess Vesta. The current form, which incorporates the letter 'V', is an astrological simplification, from the 1970s, of the 1852 form below.

(astronomy, astrology) The asteroid 4 Vesta.


Psilocybe semilanceata

A taxonomic species within the family Hymenogastraceae – liberty cap, a psychedelic “magic mushroom” containing psilocybin.


Psilocybe cubensis

A taxonomic species within the family Strophariaceae – liberty cap, gold cap, a psychedelic “magic mushroom” containing psilocybin.


The caesura mark is a variant of the medieval Latin virgula (“scratch comma”).

The angel of the Lord tarrieth | round about | them that ‖ fear him : | and de|livereth | them.

(music) A pointing mark in Anglican chant, used to mark the place in a verse which corresponds to the double barline in the chant, in circumstances where this is not the same place as the colon which divides the two halves of the verse; typically done when one half is very short.


Used as an award to children for school assignments or behavior


(meteorology) The meteorological dingbat for cloudy weather.


head

★ (English symbol name star or five-pointed star)

star (English name symbol)
five-pointed star (English name symbol)

Likely from Egyptian 𓇼 (“determinative for stars and constellations”) (image: dwA). However, around the same time in Mesopotamia, non-cuneiform depictions of a star with eight- or six-points are attested; compare Sumerian 𒀭, a cuneiform character descended from such drawings.

der

(animation, especially anime, comics) Appears in the eyes of a character to indicate that they are star-struck, excited or incredibly happy.


(a comet to contrast with Venus for female and Mars for male)


(astronomy, obsolete, rare) asteroid (20) Massalia

(astronomy, text variant only, obsolete) a variant of the symbol for asteroid (5) Astraea


(astrology) The position of the apogee of the actual Moon, or sometimes the empty focus of the Moon's elliptical orbit, which lies in approximately the same direction as the apogee.


Venus in opposition to Jupiter


The precise origin of the use of it as a Jewish symbol remains unknown, but it apparently emerged in the context of medieval Jewish protective amulets (segulot).
The Jewish Encyclopedia cites a 12th-century Karaite document as the earliest Jewish literary source to mention the symbol.


☉ or ✶'s app[arent] alt[itude]

1803, Robert Patterson, The Papers of Thomas Jefferson, volume 40 (in English), Princeton University Press, published 2013, page 72:

Note: there is no dedicated Unicode character for the astronomical symbol for a star. Publishers make different choices.


BWV

Initialism for the German Bach (“J.S.Bach”)-Werke (“works”)-Verzeichnis (“catalog”).

(music) Used to indicate a particular work of music according to a reference number assigned in the Thematisch-systematisches Verzeichnis der musikalischen Werke von Johann Sebastian Bach, a catalog which provides a reference number for each work of music by Johann Sebastian Bach, or which has been attributed to him.


Beta Canis Majoris

(astronomy) The Bayer designation of the fourth-brightest star in the constellation Canis Major.


Alpha Canis Majoris

Ancient Greek α (a, “alpha”) + Canis Majoris. From Latin canis (“dog”)+maior (“big”).

compound

Ancient Greek <i class="Polyt mention" lang="grc">α</i> (a, “alpha”)

(astronomy) Bayer designation of the star Sirius, as the brightest star of the constellation Canis Major; now recognized as a binary star system.


Canis Majoris

From Latin Canis Majoris, the genitive case of Canis Major (“the Greater Dog”).

(astronomy) Used in the Bayer designations of the stars of the constellation Canis Major.


(music) Symbol for B seventh or dominant seventh.


Coordinate term: 𝄆

(music) Indicates the end of a repeated passage of music.


A serpent twined around a staff. Perhaps representing a Guinea worm being wound out of a patient on a stick. Possibly related to the biblical account of the nehushtan.

(astronomy, dated) An old symbol for asteroid 10 Hygiea; originally rendered with a star at the top: (🝹)


(meteorology) The meteorological dingbat for sunny weather.


(music) The five-lined musical staff, used in standard Western musical notation


K⁺

For Li⁺, Na⁺, K⁺, and Rb⁺, the enthalpy of binding to the channel is close to zero.

1988 April 1, Christopher Miller with Stahl, Neil and Barrol, Margaret, “A thermodynamic analysis of monovalent cation permeation through a K⁺-selective ion channel”, in Neuron (in English), page 159:

Ion channels, which facilitate this movement, are protein assemblies that penetrate the membrane and catalyze passage of specific ions such as sodium (Na⁺), potassium (K⁺), or calcium (Ca²⁺) into or out of the cell down the electrochemical gradient.

2008 June 1, David Daniels, “Ion Channels Play Key Role in R&D”, in Genetic Engineering & Biotechnology News, volume 28, number 11 (in English), →ISSN, →OCLC, archived from the original on 2012-03-03, page 24:

(chemistry) a radical cation of potassium with a charge number of 1


Gliese

German Gliese. Named for German astronomer Wilhelm Gliese

(astronomy) An asteroid in Asteroid Belt, Solar System

(astronomy) The Gliese Catalogue of Nearby Stars


PCA

(planetology, geology) Abbreviation of Pecora Escarpment.


`vert`

head

`vert` (English symbol name vertical bar or vertical line or pipe)

`vert` (canonical)
vertical bar (English name symbol)
vertical line (English name symbol)
pipe (English name symbol)

(music) A pointing mark in Anglican chant, which marks a place in the text where a barline occurs in the chant.


`num`

`num` (English symbol name number sign or hash or pound sign or octothorpe)

`num` (canonical)
number sign (English name symbol)
hash (English name symbol)
pound sign (English name symbol)
octothorpe (English name symbol)

(music) Alternative form of ♯ (“sharp”).


A simplification of the punctus elevatus, ⟨⹎⟩.

(music) A pointing mark in Anglican chant, which marks the place which splits a verse in two, corresponding to the central double barline in a two-part chant (unless otherwise indicated by ‖).


Og

(chemistry) Symbol for oganesson (element 118, provisionally ununoctium)


The lunar crescent is an ancient symbol for the moon.
Its orientation varies between increscent and decrescent.

a subscript to variables in mathematical equations, such as π_☽ (lunar parallax)

(astronomy, rare) a natural satellite (see image at right).

(astronomy, astrology, rare) the first quarter of the Moon.


ϖ

ϖ


And

(astronomy) Abbreviation of Andromeda or its genitive form Andromedae.


(astronomy) A classification of stars, spectral type G, subtype 2.


Gpc/h

(astronomy) An indeterminate unit of distance between 4/3 Gpc and 2 Gpc. The h is a parameter in the closed interval [0.5, 0.75] and reflects an uncertainty in the Hubble constant.


Mpc/h

(astronomy) An indeterminate unit of distance between 4/3 Mpc and 2 Mpc. The h is a parameter in the closed interval [0.5, 0.75] and reflects an uncertainty in the Hubble constant. For example, in a universe where the Hubble constant is 70,(km)/(sMpc), h is 0.7. Similarly, a Hubble constant of 50,(km)/(sMpc) would lead to a value for h of 0.5.


Coordinate term: 𝄇

(music) Indicates the beginning of a repeated passage of music.


1̂

(music) tonic, or the first scale degree


4̂

(music) subdominant, or the fourth scale degree


7̂

(music) subtonic or leading tone, the seventh scale degree


6̂

(music) submediant, or the sixth scale degree


2̂

(music) supertonic, or the second scale degree


5̂

(music) dominant, or the fifth scale degree


3̂

(music) mediant, or the third scale degree


From Italian ottava bassa (“octave lower”), by analogy with 8va interpreted as an abbreviation of Italian ottava alta (“octave higher”).

(music) An instruction to play one octave lower than indicated.


⁶₄

second inversion
second inversion#English

(music) Indicates that a triad is in second inversion.


V⁷

dominant seventh chord
dominant seventh chord

(music) dominant seventh chord with the root as the dominant scale degree


(music) Indicates that the tempo quickens to one and a half times its original pace.


(music) Indicates that the tempo slows to two-thirds of its original pace.


Rhadamanthus

New Latin, from Ancient Greek Ῥαδάμανθυς (Rhadámanthus, “a son of Zeus and Europa, one of the three judges of the dead”) The name is pre-Greek, of unknown meaning, possibly of Phoenician origin.

der

(astronomy) A planetoid and cubewano orbiting in the Kuiper belt.


Ⅴ⁷/Ⅴ

(music) secondary dominant seventh chord that tonicizes the dominant in the original key


Ⅴ/Ⅴ

(music) secondary dominant triad that tonicizes the dominant in the original key


Ø⁷

half diminished
half-diminished seventh chord

(music) an indicator that a seventh chord is half diminished


ᴹ⁷

(music) An indicator that a seventh chord is major.


˚⁷

diminished
diminished seventh chord#English

(music) An indicator that a seventh chord is diminished.


(music, quarter notes and longer) split into sixteenth note pulses

(music, quarter notes and shorter) split into four notes each with one fourth the duration of the notated note, sometimes resulting in a tremolo


(music, quarter notes and longer) split into eighth note pulses

(music, quarter notes and shorter) split into two notes each with half the duration of the notated note


(music) an indicator that a note's duration should be multiplied by 1.5


(music) an indicator that a note's duration should be multiplied by 1.75


(music) indicates the end of a piece or movement


(music) indicates where to return from a dal segno


(music) An indicator of a change of key signature or any other major change.

(music) indicates a da capo or dal segno

(jazz) Used at the beginning of the staff.

(music, rare) Used at the end of single-line pieces, e.g. for scales or some demonstrative pieces.


(music) A separator between two measures or bars.

(music) A line that closes the staff at the beginning and end of the staff on the right and left side of the page.

(music) A line that connects the staves of grand staff.


Actaea

The nereid Actaea, Ἁκταία, from Ancient Greek ἁκτή (haktḗ, “coast, shore”) + -a

A taxonomic genus within the family Xanthidae – various mud crabs.

(astronomy) The moon of the possible dwarf planet Salacia.


From Italian quindicesima bassa (“fifteenth lower”), by analogy with 15ma interpreted as an abbreviation of Italian quindicesima alta (“fifteenth higher”).

(music, very rare) An instruction to play two octaves lower than indicated.


Thank you! I just want certain people to continue to see that I tried talking here, but it didn't work...D#
PS message...thank you Robert!! 🌈🌈🌈🌈

2015 November 23, luvprog [username], “Re: Language is the key”, in alt.music.pink-floyd (Usenet; in English):

The meaning of this term is uncertain. Possibilities include:


OMG Laura—Philippe is a serious man drug right here. I still can't believe you're not here to talk to in the mornings!! I'm talking serious 🍆🍆

2020, Sarah Begg, Eat Pray Shag (in English):

(Internet slang, euphemistic) Represents a penis.


Death; died; dying; deceased; mortality.

(Internet slang, video games) Kills; to kill; murder.

(rare) Alternative form of ☠ (“poison”).

(Internet slang):
(hyperbolic) Dying of laughter.


An emoji representing a pair of cherries


(anime) A sweat droplet that appears in-front of a character's face when confused, embarrassed or irritated.


Make no mistake ♬
Ba ba ba ♬
You're having your cake 𝅘𝅥𝅮
You're eating it too 𝅘𝅥𝅯

2006, “Scott Pilgrim & the Infinite Sadness”, in Scott Pilgrim, volume 3 (in English):

🎶 Lifestylessss of the rich and famous 🎶

2023 May 19, Mehera Bonner, “Sofia Richie and Elliot Grainge's Relationship Timeline Is Equal Parts Romantic and Rich”, in Cosmopolitan (in English):

Indicates music, or text that is meant to be read as a song.


(anime, manga) Represents anger or frustration on a person's face.


Aeolis Palus

Aeolis + palus.
Named in May 2012 by the International Astronomical Union as a major plain in the Aeolis quadrangle on the planet Mars Aeolis (“Aeolis quadrangle”).

(planetology) The central plain within Gale Crater on the planet Mars.

en:Aeolis quadrangle
en:International Astronomical Union


Aeolis Mons

Aeolis + Mons.
Named in May 2012 by the International Astronomical Union as a major mountain in the Aeolis quadrangle on the planet Mars Aeolis (“Aeolis quadrangle”).

(planetology) The central mountain peak within Gale Crater on the planet Mars.

en:Aeolis quadrangle
en:Curiosity (rover)
en:International Astronomical Union
en:Mars (planet)


Indicating that something is sparkling new or clean.


Ro

(chemistry, obsolete) radon; Obsolete form of Rn (“radon”). (element 86)

(chemistry, obsolete) radon; Obsolete form of Rn (“radon”). (radon-222)


H⁰

Dem Graviton (hypothetisches, masseloses Austauschteilchen der Gravitations-WW [Wechselwirkungen] mit SpinQZ s=2), dem Photon der elektromagnetischen WW, den Eichbosonen W⁺, W⁻, Z⁰ und dem Higgs-Boson H'''⁰ der schwachen WW, sowie den 8 Gluonen der starken WW.

2016 December 19, Wolfgang Pfeiler, Quanten, Atome, Kerne, Teilchen (De Gruyter Studium) (in German), Walter de Gruyter GmbH & Co KG, →ISBN, page 392:


mov.

(music) Abbreviation of movimento (Italian for “movement”, “motion”).


(astronomy, obsolete) 19th-century typographic variant of ⟨⚴⟩, the symbol for asteroid (2) Pallas


A solar disk with a single ray; simplified from a disk with a halo of rays

(astronomy, astrology, archaic) Classical and Byzantine Era symbol for the Sun


nomen conservandum

head

nomen conservandum (plural nomina conservanda)

From Latin nomen conservandum, literally "name to be conserved".

(taxonomy, astronomy, geology) A scientific name that has specific nomenclatural protection.


x`lowbar`x

An emoticon representing the face of a dead person.


(astronomy) The symbol for the constellation Ophiuchus.


Nt

(chemistry, obsolete) niton; Former name of Rn (“radon”).


Fe/H

Represents the ratio of iron to hydrogen


Gender symbols are common astrological signs which have come to us from Roman times. The pointed Mars symbol (♂) represents the male and the Venus symbol (♀) with the cross represents the female. Gay men have used double interlocking male symbols (⚣) since the 1970s. Double interlocking female symbols (⚢) have often been used to denote lesbianism, but some feminists have instead used the double female symbols to represent the “sisterhood of women”.

lesbian, female homosexual; female homosexuality.


gay, male homosexual; male homosexuality.


XXXL

extra extra extra large
extra extra extra large

(chiefly clothing) extra extra extra large (the manufactured size)


Cas

(astronomy) Abbreviation of Cassiopeia or its genitive form Cassiopeiae.


Alternative form of 🎵 (indicates a music or song)


α CMa

Alpha Canis Majoris
Alpha Canis Majoris#Translingual

(astronomy) Abbreviation of Alpha Canis Majoris.


β CMa

Beta Canis Majoris
Beta Canis Majoris#Translingual

(astronomy) Abbreviation of Beta Canis Majoris.


CMa

Canis Majoris
Canis Majoris#Translingual

(astronomy) Abbreviation of Canis Majoris, used in the names of the stars of the constellation Canis Major.


Sanner

* (asteroid): From English Sanner. Named after American astronomy author Glen Sanner

named-after

(astronomy) An asteroid in Main Belt, Solar System


⑨

(astronomy, no fill) The asteroid 9 Metis.


Sgr

(astronomy) Sagittarius, the modern IAU constellation


Sgr

(astronomy) Sagittarii, the genitive form of the IAU constellation Sagittarius


Lal.

(astronomy) Abbreviation of Lalande. Abbreviated prefix for stars under Lalande designations


(astronomy, astrology) ascending node, north node


(astronomy, astrology) descending node, south node


CTA

(astronomy) Initialism of Caltech Survey of Radio Sources, Part "A".


Ri

(fluid mechanics, meteorology) The Richardson number


Laniakea

From English Laniakea, from Hawaiian lani+ākea.

(astronomy) Laniakea: A galaxy supercluster in local Universe; The supercluster containing the Earth.


Nle

(biochemistry) IUPAC 3-letter abbreviation of norleucine.


Clarke Montes

Clarke Montes. Named in honour of scientist and author Sir Arthur C. Clarke.

(astronomy, geology, Charon) A mountain on Charon, the moon or binary companion of the dwarf planet Pluto.


Kubrick Mons

Kubrick Mons. Named in honour of film director Stanley Kubrick, who directed the iconic epic 2001: A Space Odyssey.

2001: A Space Odyssey
en:Stanley Kubrick


Caleuche Chasma

Caleuche Chasma. Named after the legendary ghost ship Caleuche of Chiloé Island.

(astronomy, geology, Charon) A canyon on Charon, the moon or binary companion of the dwarf planet Pluto.


Butler Mons

Butler Mons. Named in honour of science fiction author Octavia E. Butler.


Mandjet Chasma

Mandjet + chasma, from Egyptian mꜥnḏt (“the boat of the Sun that carries the Sun God, Ra (Re), across the sky each day”).


Argo Chasma

Argo Chasma. Named after the mythological Greek ship Argo, from the tale of Jason and the Argonauts.


Ysolo Mons

Ysolo + mons. Erroneously named after an internet hoax (a fake Albanian eggplant festival) which fooled the astronomers looking for names of festivals, following the naming directive to name features on Ceres after world festivals.

(geology, astronomy, obsolete) Former name of Yamor Mons. (2015-2017), a mountain on Ceres, a dwarf planet found in the Main Asteroid Belt.


Yamor Mons

Yamor + mons. Named in after Yamor, the Ecuadorian maize festival.

(geology, planetology) A mountain on Ceres, a dwarf planet found in the Main Asteroid Belt.


Ahuna Mons

Ahuna + mons. Named in after Ahuna, the harvest festival of the Sumi tribe from northeast India.

(geology, astronomy) A mountain on Ceres, a dwarf planet found in the Main Asteroid Belt. It is the tallest mountain on Ceres.


Liberalia Mons

Liberalia + mons. Named in after Liberalia, the Ancient Roman festival honouring the vine deities Liber and Libera.

(geology, astronomy) A mountain on Ceres, a dwarf planet found in the Main Asteroid Belt.

en:Liber
en:Libera (mythology)
en:Liberalia


Ysolo

(geography, geology, astronomy, obsolete) Ellipsis of Ysolo Mons. Former name of Yamor Mons.


Nix Olympica

Coined by Italian astronomer Giovanni Schiaparelli in 1879, who first observed the surface feature, from Latin nix (“snow”) and olympicus (“Olympic”), meaning “Olympic Snow, Snow of Olympus”, from the feature appearing whitish against the generally reddish planet.

coin

Der größte Krater war der Nix Olympica: viermal so hoch wie der Kilimandscharo, hatte er einen Durchmesser von achthundert Kilometern.

1978, “Erbe des Tba”, in Perry Rhodan, number 881 (in German):

Der Riesenvulkan Nix Olympica auf Mars wurde erst von Mariner 9 als solcher erkannt. […] Das auf dem Ausschnitt gekennzeichnete Telebild zeigt einen Teil des sehr rauhen Abhangs von Nix Olympica, hier ist ein Gebiet von 43 × 55 km erfaßt.

1984, Wolfgang Engelhardt, Planeten Monde Ringsysteme: Kamerasonden erforschen unser Sonnensystem (in German), page 129:

[…] Nix Olympica had been known to Earth-bound astronomers since Schiaparelli in 1879. […] The improved coverage of Nix Olympica by Mariner 7 showed a concentric ring-like surface structure. By the time Mariner 9 approached Mars, Nix Olympica had already been reinterpreted as a gigantic impact crater […]

2004, Jeffrey S. Kargel, Mars - A Warmer, Wetter Planet (in English), page 48:

(planetology, astronomy, historical) Former name of Olympus Mons. (19th c. — 20th c.) (an albedo feature on the planet Mars, now known to be the tallest mountain, but without a snowcap)


From AISI and SAE standards nomenclature for iron and steel grades for carbon steels with a maximum of 1% carbon content.

(metallurgy) Identifying a steel grade with a maximum of 1% carbon.


For steels with 1% or less carbon content, 10- + "95" (0.95%) fractional portion of the percentage of carbon content.

(metallurgy) A common grade of high carbon steel (0.95% carbon) used for blades. This grade is not a stainless steel, thus knives made with it must be oiled to prevent rusting, but its properties are suitable to make functional presentation swords.


From AISI and SAE standards nomenclature for iron and steel grades for chromium steels with roughly 1% chromium.

(metallurgy) Identifying a chromium steel grade with roughly 1% chromium, and a varying amount of carbon.


For chromium steels with 1% or less carbon content, and roughly 1% chromium, 51- + "60" (0.60%) fractional portion of the percentage of carbon content.

(metallurgy) A common grade of stainless steel used for blades and springs. Suitable for use in functional presentation swords.


☉ or ⚹'s app[arent] alt[itude]


Pōwehi

From Hawaiian Pōwehi, from pōwehi, the generative darkness of creation, from the Hawaiian creation chant Kumulipo. From pō (“unfathomable ceaseless powerful creation”) + wehi (“honorific for crowned nobles”). The Hawaiian name was chosen by Jessica Dempsey (James Clerk Maxwell Telescope observatory deputy director), Hawaiian language linguist Larry Kimura, and Geoffrey C. Bower (chief scientist of Academia Sinica Institute of Astronomy and Astrophysics division of Hawai’i).

“UH Hilo professor names black hole capturing world's attention”, in University of Hawaiʻi News, 2019 April 10, retrieved 2020-03-19: “In April 2017, a groundbreaking observational campaign brought together eight telescopes at six locations around the globe to capture an image of Pōwehi, a supermassive black hole at the center of the Messier 87 galaxy.”

“Maunakea telescopes win the 'Oscars of Science' for Pōwehi”, in University of Hawaiʻi News, 2019 September 6, retrieved 2020-03-19: “Working together as one ʻohana was critical to our success in capturing the image of Pōwehi.”

2020, Jessica T. Dempsey, "The Event Horizon Telescope: the impact of an image and finding Pōwehi", in Ground-based and Airborne Telescopes VIII

The most important thing that we have learned is that the shadow of Pōwehi is always there. That means it is real and is caused by the light bending from the black hole. […] The wobble tells us about how gas is flowing around the black hole, varying like clouds in the sky or waves on the ocean. What's next is to use our improved array and make images over years to come and learn from those changes to answer questions like, 'How does Pōwehi feed itself?'

“Pōwehi: New research captures a decade of movement”, in (Please provide the book title or journal name), James Clerk Maxwell Telescope, 2020 September 23, retrieved 2020-03-19

(astronomy) M87* (“Messier 87*”), the central supermassive blackhole of the galaxy Messier 87.


Night everyone. Happy Black Moon. It is when there is a second new moon in one month. A time for resolutions and new begginings^([sic]) 😊🌑

2016 October 1, Mark Molloy, quoting Raven Giannoukas, “Black moon rises in 'rare' lunar event - but what was it?”, in The Telegraph (in English):

Watch out for werewolves 🌑

2016 September 9, Sophie Gallagher, “A Black Moon Is Coming On Friday, Here's What It Is”, in Huffington Post UK (in English):

New moon 🌑New Look ✨ #nashville #pixiecuts #kevinmurphy #reverie #precisioncut #razorcut

2017 April 2, Dory Larrabee-Zayas, quoting Maren Morris, “Maren Morris Shows Off Dramatic Pixie Hair Makeover At ACMs”, in Huffington Post UK (in English), archived from the original on 2020-09-23:


X`lowbar`X

Alternative form of x_x (face of a dead person)


Depicts the raised fist used to promote socialist or otherwise progressivist causes

Used to invoke the image of fisting, i.e. sexual stimulation with the bulk of the hand

(Southern and Eastern Europe) Depicts the fig sign used in a mildly vulgar way to signify rejection


A proposed alchemical symbol for platinum, derived from the symbols for the planetary metals gold ⟨☉⟩ and iron ⟨♂⟩, as platinum (previously known as 'white gold') was often found mixed with iron. This symbol for the newly discovered metal platinum was created in order to have a symbol to apply to the newly discovered planet Uranus.


C₃H₆

(organic chemistry) molecular formula for cyclopropane


A representation of the common hand gesture. The use to signal support for white supremacy began among users of the imageboard 4chan, due to the widely-known innocuous sense, as part of a trolling campaign designed to provoke media backlash and thereby enable the ridicule of anyone pointing out its racial meaning. The gesture and symbol came to be genuinely used by white supremacists.

Denen wurde ja sogar erzählt, sie sollen aufhören mit Pornos und 👌 … damit die Typen immer aggressiver werden.

2024 January 15, Commenter Jasminimal, 2:19:26 from the start, in Rechtsextreme auf dem Vormarsch | Arte - Anstieg rechter Gewalt (in German), EX - Rechte Rotlicht Rocker - Philip Schlaffer:

They were even told they should quit porn and hand shandy … so them blokes become ever more aggy

(Internet slang, euphemistic, figuratively) The sexual stimulation of the penis.


pSer

(biochemistry) abbreviation of phosphorylated serine


pTyr

(biochemistry) abbreviation of phosphorylated tyrosine


pThr

(biochemistry) Abbreviation of phosphorylated threonine.


Mare Tranquillitatis

Mare + Latin tranquillitātis. From Latin Mare Tranquilitātis (spelled with one "L"). From Latin mare+tranquillitās (literally “Sea of Tranquility”). Coined by Italian Jesuit astronomer Giovanni Battista Riccioli, by labelling a map created by Italian Jesuit optician Francesco Maria Grimaldi, and then published in 1651 in the Almagestum Novum.

der

(planetology) The Sea of Tranquility: a basin in Nearside, Moon, Earth, Solar System; a lunar mare region.

en:Almagestum Novum
en:Francesco Maria Grimaldi
en:Giovanni Battista Riccioli


Mare Procellarum

Blend of Mare + Oceanus Procellarum. Variation of Oceanus Procellarum; replacement of the rare "Oceanus" with the common "Mare", where many features on the Moon are called the 'mare' (the maria), and only this one feature is called 'oceanus'.

Oceanus Procellarum
Oceanus Procellarum#Translingual

(planetology) The Sea of Storms: Synonym of Oceanus Procellarum (“Ocean of Storms”); a basin in Nearside, Moon, Earth, Solar System


(astronomy) The trans-Neptunian asteroid 174567 Varda


ALH

(planetology, geology) Abbreviation of Allan Hills.


LEW

(planetology, geology) Abbreviation of Lewis Cliff.


LAP

LaPaz Icefield
LaPaz Icefield#Translingual

(planetology, geology) Abbreviation of LaPaz Icefield.


IAF

(astronautics) Initialism of International Astronautical Federation.; from English IAF. The international federation for astronautics and space advocay


Facula

(planetology) An albedo surface feature, lighter than the surroundings.


Created by Denis Moskowitz from the Canadian syllabics letters ⟨ᓴ⟩ sa and ⟨ᓐ⟩ n, from the modern Inuktitut form of Sedna, ᓴᓐᓇ Sanna. Intended to visually suggest a seal leaping from the water.

(astronomy, astrology) The dwarf planet Sedna.


Pluto's bident, stylized like Neptune's trident and surmounted by a globe or cap. Popularized by Paul Clancy, founder in 1933 of American Astrology magazine.

(astronomy, rare) Pluto as a dwarf planet.


(astronomy, alchemy): The four quadrants of the world, divided by the four rivers out of Eden and surrounded by the ocean sea. Later interpreted as a globe with equator and line meridian.
(meteorology): A sun cross

units of measurement: M_🜨 Earth mass; R_🜨 Earth radius

(astronomy, astrology) the planet Earth.


Created by Denis Moskowitz from the "five-fingered hand" symbol ⟨⟩ of the goddess Eris, a symbol found in modern Discordianism. Moskowitz rotated the hand symbol upright like the related Discordian POEE symbol ⟨⟩, and added a cross-bar, ⟨[Alt: Э]⟩, so that it would resemble a double lunate letter epsilon, the initial letter of 'Eris'. However, the Discordian community objected that this produced a "seven-fingered hand," and in response he removed the cross-bar.

(astronomy, astrology) The dwarf planet Eris.


Dziewanna

(astronomy) A planetoid orbiting in the scattered disc.


Varda

Queen of the Valar, who kindled the first stars in J. R. R. Tolkien's Elvish legendarium.

trans-Neptunian object
trans-Neptunian object

(astronomy) A distant trans-Neptunian object and planetoid, once thought to be a possible dwarf planet. Its moon is Ilmarë.


Ilmarë

Chief of the Maiar in J. R. R. Tolkien's Elvish legendarium, and handmaiden to Varda.

(astronomy) The moon of the distant planetoid Varda.


Lempo

From Finnish Lempo (the pagan god of love equated with the Christian devil).

(astronomy) A binary planetoid and a plutino orbiting in the Kuiper belt. Its binary components, Lempo and Hiisi, are orbited by the moon Paha.


A globe surmounted by the letters LV, the initials of Le Verrier, the discoverer of Neptune – analogous to ⟨♅⟩ for Uranus ('planet Herschel')


(astronomy): A lunar crescent and the globe of Pluto's symbol ⟨⯓⟩, visually suggesting Pluto and its moon, and iconically suggesting Charon's boat and the coin needed for passage

(astronomy, rare) Pluto's moon Charon, a dwarf planet in some classifications.


Malmok

From Papiamentu Malmok, from Arawakan (Caquetio). Named after the beach.

Milky Way Galaxy
Milky Way Galaxy#English

A star in Milky Way Galaxy; in the in Virgo constellation


Created by Denis Moskowitz from stylized Hawaiian petroglyphs for women and childbirth, representing the Hawaiian fertility and creation goddess Haumea. It faintly recalls the initial letter 'H'.

(astronomy, astrology) The dwarf planet Haumea.


Created by Denis Moskowitz as an OR monogram, stylized to resemble the gape of Orcus's skull or of an orca (a homophonic connection to Orcas Island, which influenced the choice of the name of the dwarf planet).

(astronomy, astrology) The dwarf planet Orcus.


Created by Denis Moskowitz from the large-eyed and phallic-nosed petroglyphs of the Rapa Nui creation god Makemake that are found scattered on Easter Island. It faintly recalls the initial letter 'M'.

(astronomy, astrology) The dwarf planet Makemake.


Created by Denis Moskowitz from the initial character ⟨共⟩ of the Chinese name 共工 (Gònggōng), with the bottom strokes replaced by the serpentine body of the Chinese demon/deity Gonggong.

(astronomy, astrology) The dwarf planet Gonggong.


Created by Denis Moskowitz as the initial letter Q of the Tongva creator god 'Quaoar', with the tail stylized to resemble a canoe and with the bowl later made angular to resemble Tongva rock art.

(astronomy, astrology) The dwarf planet Quaoar.


'moon in conjunction with Jupiter'

'moon occults Jupiter'

'Moon occults Sun' (i.e. solar eclipse, commonly abbreviated )

(astronomy, astrology) symbol for occultation, most commonly a solar eclipse.


(astronomy, geography, rare) the symbol ⟨🜨⟩ (Earth), rotated to represent the four continents of the 16th century (Europe to the north, Asia to the east, Africa to the south, and America to the west). Cf. T-and-O map ⟨🜗⟩ for the original three continents.


'moon in opposition to the Sun' (full moon)

'moon shadowed from the Sun' (i.e. lunar eclipse, commonly abbreviated )

Ⅰ 'Io in Jupiter's shadow'

(astronomy, astrology) symbol for a lunar eclipse, or, more generally (but rarely), for any celestial body found in the shadow of another, such as the timing of Io entering Jupiter's shadow, used by Rømer to calculate the speed of light.


H₀

허블 상 수라고 부르는 이 기울기 H₀는 허블을 기념하기 위한 것이고 아래 첨자 0은 오늘날의 값을 의미합니다.

2019 July 17, Eunil Won (원은일), 우주 탄생의 비밀을 찾아서 [In search of the secret of the birth of the universe] (in Korean), 세창출판사, →ISBN, pages 35–36:

This slope H'''₀ is called the Hubble constant in honor of Hubble, and the subscript 0 stands for the present value.

Heobeul sang surago bureuneun i giulgi H₀neun heobeureul ginyeomhagi wihan geosigo arae cheomja 0eun oneullarui gapseul uimihamnida.

Leider lieferten bislang verschiedene Messmethoden für H'''₀ voneinander abweichende Ergebnisse, was ein großes Rätsel der modernen Kosmologie ist.

2021 July 21, Gravitationswellen: Start in eine neue Astronomie (Spektrum Kompakt) (in German), Spektrum der Wissenschaft, →ISBN, page 27:

Unfortunately, different measurement methods for H'''₀ have so far given divergent results, which is a great mystery of modern cosmology.


Piccard Mons

Named after Swiss scientist Auguste Piccard.

(planetology) A possible extinct cryovolcano on the planet Pluto.


Wright Mons

Named after American aviation pioneers Wilbur and Orville Wright.

(planetology) A possible extinct volcano on the planet Pluto.

Orville Wright
Wilbur Wright
Wright Mons


*Interlinked ⟨♀⟩ female and ⟨♂⟩ male symbols

(LGBT, dated) homosexuality; the common goals of lesbians and gay men.


*(alchemy): Unclear derivation from ⟨♂⟩ iron. May have either a cross-bar ⟨⟩ or a dot ⟨⟩.
*(LGBT): Combination of ⟨♂⟩ and ⟨♀⟩.

(LGBT) androgyne, gender-neutral, intersex.


For Astraea, this is an inverted anchor, 🝸, presumably a typographic substitute for the mythologically associated set of scales, and dates to 1849.
It's not known if the Pluto symbol is related. It has been in use since at least 1950 without an orb and 1969 with an orb.

the orb may be as large as those of the other planetary symbols ⟨link=☿⟩

⟨link=♂⟩ and German-style ⟨link=♆⟩. There may be no globe at all in German sources that use a globeless ⟨link=♆⟩ for Neptune.

(astronomy, obsolete) asteroid (5) Astraea.


XXXS

extra extra extra small
extra extra extra small

(chiefly clothing) extra extra extra small (the manufactured size)


XXXXL

extra extra extra extra large
extra extra extra extra large

(chiefly clothing) extra extra extra extra large (the manufactured size)


M31 (“Andromeda Galaxy”) + V* (“variable star”) + 1 (“number 1, first”). From being the first variable star identified in the Great Andromeda Nebula, by Edwin Hubble.

compound

Hubble's Variable
Hubble's Variable#English

Local Supercluster
Local Supercluster#English

Hubble's Variable (“Hubble's Star”): A star, a Cepheid variable in Andromeda Galaxy, Local Group, Local Supercluster, Laniakea, located in the Andromeda constellation; the first variable star discovered outside the Milky Way Galaxy, and first star identified whose distance was unequivocably beyond the confines of the Milky Way.


Klv

(mineralogy, geology, chemistry) International symbol for the mineral kolovratite


a waxing crescent moon (northern hemisphere)

a waning crescent moon (southern hemisphere)


a waning crescent moon (northern hemisphere)

a waxing crescent moon (southern hemisphere)


a last (waning) quarter moon (northern hemisphere)

a first (waxing) quarter moon (southern hemisphere)


a first (waxing) quarter moon (northern hemisphere)

a last (waning) quarter moon (southern hemisphere)


a waning gibbous moon (northern hemisphere)

a waxing gibbous moon (southern hemisphere)


a waxing gibbous moon (northern hemisphere)

a waning gibbous moon (southern hemisphere)


(alchemy): a fusion of ⟨♁⟩ antimony and ⟨🜹⟩ or ⟨⚹⟩ sal-ammoniac
:(astronomy): combination of a star and an orb. May be a six-point star.

(rare, astronomy) generic symbol for asteroid (cf. ⟨🜢⟩ planetoid)


③

(astronomy, no fill) The asteroid 3 Juno.


②

(astronomy, no fill) The asteroid 2 Pallas.


⑤

(astrology, rare):

(astronomy, dated):

(astronomy, no fill) The asteroid 5 Astraea.


⑦

(astronomy, no fill) The asteroid 7 Iris.


①

(astronomy, no fill) The asteroid 1 Ceres.


⑧

(astronomy, no fill) The asteroid 8 Flora.


⑥

(astronomy, no fill) The asteroid 6 Hebe.


⑩

(astrology):

(astronomy, dated): ,

(astronomy, no fill) The asteroid 10 Hygiea.


④

(astronomy, no fill) The asteroid 4 Vesta.


⑳

(astronomy, no fill) The asteroid 20 Massalia.


⑬

(astronomy, no fill) The asteroid 13 Egeria.


⑫

(astronomy, no fill) The asteroid 12 Victoria.


⑰

(astronomy, no fill) The asteroid 17 Thetis.


⑪

(astronomy, no fill) The asteroid 11 Parthenope.


⑮

(astronomy, no fill) The asteroid 15 Eunomia.


⑯

(astronomy, no fill) The asteroid 16 Psyche.


⑭

(astronomy, no fill) The asteroid 14 Irene.


⑱

(astronomy, no fill) The asteroid 18 Melpomene.


⑲

(astronomy, no fill) The asteroid 19 Fortuna.


Kappa Velorum

Ancient Greek κάππα (káppa) + Velorum, as per binomial nomenclature

com

Ancient Greek <i class="Polyt mention" lang="grc">κάππα</i> (káppa)

(astronomy) Markab, a certain binary star.


half-diminished seventh chord
half-diminished seventh chord

(music, jazz theory) Used after a pitch class to denote a half-diminished seventh chord with a note of said pitch as its root.

(music) niente, a dynamic marker representing total silence


×`lowbar`×

Alternative form of x_x (face of a dead person)


Pansexual

A combination of ⚦ and the letter P for pan-. Invented on Wikipedia.

(LGBT, rare) A symbol representing pansexuality.


²³⁸U

(physics) The chemical symbol for uranium-238, the most common isotope of uranium.


²³⁵U

(physics) The chemical formula for the uranium isotope uranium-235, which is used in nuclear fission.


The 8 represents the testicles, the = symbol represents the length of the penis, and the D represents the glans penis.

(vulgar, humorous, Internet slang) A graphical representation of a penis and testicles.


M♁

*M (mass) and subindex ♁ (Earth). The use of ⟨M_♁⟩ rather than ⟨M_🜨⟩ seems particularly common in German-language texts.

The dynamically cold planetesimal disk was 35 M_♁, with an inner edge at 15.5 AU and an outer edge at 34 AU.

(astronomy) Earth mass: a unit of measurement, equal to the mass of planet Earth, which is 6×10²⁴ kg or 3×10⁻⁶ M_☉.


M🜨

M⊕

a common typographic substitution, as mathematical ⟨⊕⟩ was supported by Unicode a decade before astronomical ⟨🜨⟩

For Saturn, […] the total mass of heavy elements is between 13 and 28 M'''_🜨.

Jupiter formation required a core mass of ∼ 21 M_🜨.


From English Strottner-Drechsler-Sainty Object 1, from Strottner+Drechsler+Sainty+object+1. From French Strottner+Sainty and German Drechsler; French and German astrophotographers Marcel Drechsler, Yann Sainty, Xavier Strottner; the names of the discoverers of the celestial object.

der

Andromeda Galaxy
Andromeda Galaxy#English

(astronomy, initialism) A nebula in Andromeda constellation A gas cloud composed of seemingly just oxygen, shining in O_(III) emission radiation, located next to the Andromeda Galaxy on the dome of the sky. The first such extrasolar oxygen cloud discovered.


R☉

The inner edge of the [circumbinary] disc is at 317 R_☉, well outside the inner binary orbit.

(astronomy) solar radius: a unit of distance, equal to the radius of the Sun: 7×10⁸ m or 110 R_🜨.


M☉

(sum of parts) the maximum mass each pulsar can have is only 0.08 M'''_☉.

(astronomy) Solar mass: a unit of measurement, equal to the mass of the Sun, which is 2×10³⁰ kg or 333,000 M_🜨.


S☉

(astronomy) solar constant: a unit of measurement, equal to the amount of solar radiation per unit area at Earth


L☉

A typical large galaxy at z < 0.1 has a luminosity of about 10¹⁰ L_☉.

(astronomy) solar luminosity: a unit of measurement, equal to the luminosity of the Sun.


R🜨

*R (radius) and subindex 🜨 (planet Earth).

R⊕ [a common typographic substitution, as mathematical ⟨⊕⟩ was supported by Unicode a decade before astronomical ⟨🜨⟩]

the transition radius of 2.6 R'''_🜨 between water worlds and planets with gaseous envelopes

(astronomy) Earth radius: a unit of distance, equal to the radius of the Earth, or 6370 km.


(astrology, Russia) the "true" White Moon, also called "Artha" (Арта), with its position calculated from the "true" Black Moon ⟨⯞⟩, as opposed to the mean White Moon ⟨⯝⟩.


(astrology) The "true" black moon: the lunar apogee as calculated from the Moon's current oscillating position using Kepler's laws (assuming no further perturbations), as opposed to the mean Black Moon ⟨⚸⟩.


белая Луна
белая Луна

Селена Селена

(astrology, Russia) the White Moon (белая Луна) a.k.a. Selena (Селена), a "hypothetical" point that serves as the thematic opposite to the Black Moon a.k.a. Lilith, ⟨⚸⟩. It traverses the zodiac in exactly seven years.


ʻOumuamua

(astronomy) 1I/2017 U1, the first discovered interstellar asteroid to transit the Solar System


(music) A fermata note. E.g. fermata ⟨♩͒⟩ is held longer than an unmarked quarter note ⟨♩⟩.


TERRENCE: Thanks for lunch, baby. Wyd? ME: Out grabbing a gift for a patient. Wby? TERRENCE: You got time to come through on my next break? I want some 💦 ME: Yeah. 🤫 If I end the session early.

2020 February 14, Darrell C. Scott Jr., Manstress Diaries (in English), →ISBN:

!!! Mark Your Calendars - July 10th, We Leak Our Tape 📼😈💦

2022 July 2, Vitaly Zdorovetskiy, “Tweet”, in Twitter (in English), archived from the original on 2022-11-09:

(Internet slang, euphemistic, figuratively) Semen; ejaculation; sexual intercourse.


Ho'oleilana

(astronomy, cosmology) Ho'oleilana: A structure in local Universe


(music, Persian) sori (a quarter-tone sharp)


(music, Persian) koron (a quarter-tone flat)


(jazz, rare) Sometimes used at the beginning of the staff.


(astronomy, obsolete) The asteroid 8 Flora.


1827, Franz Schubert, Impromptu in G♭ major, Opus 90, № 3, Andante (D. 899), published 1857, incipit


XLT

(chiefly clothing) extra large tall (the manufactured size)


Sense 2 is derived from the absence of an emoji or Unicode character for a rope; rather, this symbol specifically represents a knot.

(Internet slang) (BDSM, metonymically) Represents bondage.


(music, rare) A quarter tone sharp note.


(music, dated) A quarter tone sharp note.

(music) An undefined microtone note less than a quarter tone sharp; the exact value needs to be defined for each work.


(music, dated) A quarter tone flat note.

(music) An undefined microtone note between a quarter tone flat and a full flat; the exact value needs to be defined for each work.


(music, dated) A three-quarter tone sharp note.

(music) An undefined microtone note between a sharp and three-quarter tone sharp; the exact value needs to be defined for each work.


(music, dated) A three-quarter tone flat note.

(music) An undefined microtone note between a flat and three-quarter tone flat; the exact value needs to be defined for each work.


(music) An undefined microtone note between a quarter tone sharp and a full sharp; the exact value needs to be defined for each work.


(music) An undefined microtone note less than a quarter tone flat; the exact value needs to be defined for each work.


(astronomy, stellar classification) A spectral class of stars comprising bluish-white giant stars with very strong hydrogen Balmer absorption lines (Morgan–Keenan spectral standard: Thuban).


Chilicola charizard

Chilicola + English Charizard (“species of Pokémon”). Charizard is a blend of char + lizard.

affix

A taxonomic species within the family Colletidae – xeromelissine bees.


(astronomy, text style, rare) planetary rings.


M☾

(astronomy) Lunar mass: a unit of measurement, equal to the mass of the Moon.


R☾

(astronomy) Lunar radius: a unit of measurement, equal to the radius of the Moon.


M♃

(astronomy) Jovian mass: a unit of measurement, equal to the mass of Jupiter.


R♃

(astronomy) Jovian radius: a unit of measurement, equal to the radius of Jupiter.


Bloomsbury Publishing
The Guardian
Twitter
Vox (website)

Various:
* (punk): Arose in the late 1970s, origin obscure.
* (solidarity): Proposed by the British Twitter user @cheeahs on 26 June 2016 as an object which can be subtly attached to one's clothing to signify being a "safe" ally to those experiencing racism following the United Kingdom's Brexit referendum. After going viral on the platform in the following days, the safety pin became a symbol against worldwide racism as a whole and later any forms of discrimination in general.
* (diaper): Resembles a diaper pin; by extension used as a metonym for babies or childcare in general.
* (sewing): Safety pins are widely applicable to sewing as they can be used to fasten fabrics; by extension, applicable and useful also in arts and crafts.


(Internet slang, euphemistic, figuratively) A small penis.


(Internet slang, euphemistic, figuratively) A penis.


(mobile games, Internet) Primes the user to use a pinching gesture on a touchscreen device.


(Internet slang, euphemistic) A vagina; the female genitalia; pussy.


(music) An instruction indicating that the player should rest for multiple bars.


Rathalos treecko

Binomial compound of Rathalos + English Treecko (“species of Pokémon”). English Treecko is from a blend of English tree (“type of plant”) + English gecko (“type of lizard”).

blend

A taxonomic species within the family Anyphaenidae – a certain anyphaenid sac spider.


Bulbasaurus

English Bulbasaur (“species of Pokémon”) + -us m, with the influence of -saurus m (“lizard”). English Bulbasaur is derived from English bulb (“plant part”) + English -a- (“phonetic interfix”) + English -saur (“lizard, saurian”), literally “bulb-lizard”.

affix

A taxonomic genus within the family Geikiidae – certain extinct mammals.


Uts

(chemistry) untriseptium, element 137 (unofficially called feynmanium)


Leleākūhonua

Coined from Hawaiian lele (“fly”) + ā (“until”) + kū (“stand, appear”) + honua (“earth, land”), comparing its orbit to the migration of seabirds and evoke a yearning to return to land / Earth.

(astronomy) (541132) Leleākūhonua, a distant sednoid in the outer reaches of the Solar System


Pōniuāʻena

Coined from Hawaiian pōniu (“spin, whirl”) + ā (“until”) + ʻena (“red-hot, glowing”), evoking the unseen spinning source of creation, surrounded by brilliance.

(astronomy) J1007+2115, a quasar, the most distant known when discovered, with a redshift 7.515 and a central black hole of 1.5 billion solar masses.


Kaʻepaokaʻāwela

[kəˌʔɛ.pə.oˌkɐ.ʔaːˈʋɛ.lə]

Coined from Hawaiian ka (“the”) + ʻepa (“tricky, mischievous”) + o (“of”) + Kaʻāwela (“Jupiter”), referring to its contrary orbit with Jupiter.

(astronomy) 514107 Kaʻepaokaʻawela, a retrograde Trojan asteroid of Jupiter, the first such known.


Kamoʻoalewa

Coined from Hawaiian ka (“the”) + moʻo (“fragment”) + a (“of”) + lewa (“to jump, to oscillate”), referring to a fragmentary object that oscillates in the sky from the perspective of Earth.

(astronomy) 469219 Kamoʻoalewa, a small Apollo asteroid and quasi-satellite of Earth. It may be an impact fragment from the Moon.