- a medicine that induces some kind of bodily discharge, such as an emetic, a sudorific, or especially a laxative泻药; 清除剂; 催吐剂; 利尿剂。
- (of a medicine or treatment) acting to induce some kind of bodily discharge（药物, 治疗）排泄的, 排空的; 清除的; 导泻的; 催吐的。
词源
mid 18th cent.: from Latin evacuant- 'emptying (the bowels)', from the verb evacuare, later in the more general sense 'remove (contents)'.