Read Edit View history 上夸克 shàngkuākè up quark Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 上夸克 shàngkuākè up quark noun · up quark (particle physics) 上夸克是构成质子和中子的基本粒子之一。 Edit Delete References Add reference No references for this word.