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Definitions for Quark

[1] Physics . any of the hypothetical particles with spin 1/2, baryon number 1/3, and electric charge 1/3 or −2/3 that, together with their antiparticles, are believed to constitute all the elementary particles classed as baryons and mesons; they are distinguished by their flavors, designated as up (u), down (d), strange (s), charm (c), bottom or beauty (b), and top or truth (t), and their colors, red, green, and blue. Compare color(def 18) , flavor(def 5) , quantum chromodynamics, quark model.
[2] physics any of a set of six hypothetical elementary particles together with their antiparticles thought to be fundamental units of all baryons and mesons but unable to exist in isolation. The magnitude of their charge is either two thirds or one third of that of the electron
[3] a type of low-fat soft cheese

Words nearby Quark

quar., quarantine, quarantine anchorage, quarantine flag, quare, quark, quark model, quark star, quarkonium, quarks, quarles

Origin of Quark

coined in 1963 by U.S. physicist Murray Gell-Mann (born 1929), who associated it with a word in Joyce's Finnegans Wake, read variously as English quark croak and German Quark curd, (slang) rubbish, tripe

Words that may be confused with Quark

quark, quirk

Word origin for Quark

from German