多粒子系統 duōlìzǐxìtǒng many-body system Origin Definitions Defs Strokes Stroke Words Sentences Sents 多粒子 duōlìzǐ many-particle used in physics to describe a system involving multiple particles系统 系統 xìtǒng noun system A whole composed of parts that work together to perform a function or achieve a goal; a series or group of related things forming a complex whole.