excrete
/ekˈskriːt/verb
with obj.
- (of a living organism or cell) separate and expel as waste (a substance, especially a product of metabolism)（生物体, 细胞）排泄; 分泌（物质, 尤指代谢物）：
excess bicarbonate is excreted by the kidney
肾脏分泌过多的碳酸氢盐
no obj. the butterfly pupa neither feeds nor excretes.蝴蝶蛹既不吃也不排泄。
派生词
excreter
nounexcretive
adjective词源
early 17th cent. （in the sense 'cause to excrete'）： from Latin excret- 'sifted out', from the verb excernere, from ex- 'out'+cernere 'sift'.