Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun bottom_quark

1 sense of bottom quark

Sense 1
bottom quark, 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")