| antiquark | (noun) the antiparticle of a quark | - |
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| quark | (noun) fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet | Synonyms: quark cheese |
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| (noun) (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 | - |
| squark | (noun) a quark with an electric charge of -1/3 and a mass 988 times that of an electron and a strangeness of -1 | Synonyms: strange quark |
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