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bottom quark

DEFINITIONS OF: bottom quark

1

n a quark with a charge of -1/3 and a mass about 10,000 times that of an electron

Synonyms:
beauty quark
Type of:
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
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