from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a group of six elementary particles having electric charges of a magnitude one-third or two-thirds that of the electron, regarded as constituents of all hadrons. See Table at subatomic particle.
- n. A soft creamy acid-cured cheese of central Europe made from whole milk.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. In the Standard Model, an elementary subatomic particle which forms matter. Quarks are never found alone in nature and combine to form hadrons, such as protons and neutrons.
- n. a soft creamy cheese. The Russian quark and Finnish quark are somewhat different. The Russian version is firmer in consistency and contains about 15% milk fat, whereas the Finnish quark often contains less than 1% milk fat.
from The Century Dictionary and Cyclopedia
- n. Same as quawk.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet
- n. (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3
From Three quarks for Muster Mark!, a line in Finnegans Wake by James Joyce.
German, from Middle High German quarc, from Lower Sorbian twarog, from Old Church Slavonic tvarogŭ.(American Heritage® Dictionary of the English Language, Fourth Edition)
First used in 1963 by the discoverer of quarks, Murray Gell-Mann, to name these new particles. The literary connection to James Joyce's Finnegans Wake was asserted later (quote below). (Wiktionary)
German Quark, from Middle High German quarc (Wiktionary)