药残 yàocán drug residue Origin Definitions Defs Strokes Stroke Words Sentences Sents 药 藥 yào noun abbreviation of 农药 農藥 nóngyào pesticide agricultural chemical; farm chemicals used to kill pests and weeds or to regulate crop growth残 殘 cán abbreviation of 残留 殘留 cánliú residue remnant; residue; vestige, such as chemical traces or biological remains