| beauty quark n. See bottom quark. |
beauty quark (by  t ) See bottom quark. |
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| Noun | 1. | beauty quark - a quark with a charge of -1/3 and a mass about 10,000 times that of an electron quark - (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; "quarks have not been observed directly but theoretical predictions based on their existence have been confirmed experimentally" |
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