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n. Abbr. c
The flavor of quark that has a charge of + 2/3 , has a mass about 2,450 times that of an electron, and belongs to the second generation of elementary fermions. Also called charmed quark.
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|Noun||1.||charm quark - a quark with an electric charge of +2/3 and a mass 2900 times that of an electron and a charm of +1|
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"