n. (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
n. fresh unripened cheese of a smooth texture made from pasteurized milk, a starter, and rennet
n. 夸克（构成原子的最小粒子）( quark的复数形式 )