阀芯 fáxīn valve core Origin Definitions Defs Strokes Stroke Words Sentences Sents 阀 閥 fá noun valve a mechanical device used to control the flow, pressure, or direction of liquids or gases; a loanword from English "valve"芯 xīn noun core wick; fuse; core; an object inserted into another, such as a pencil lead or electronic chip