excretory

a. 排泄的

Serving to carry waste out of the body; excretory.

排泄的用来把废物带出体外的；排泄的

The excretory opening of the digestive tract in animals such as birds, reptiles, amphibians, and fish.

肛门鸟、爬行动物、两栖动物以及鱼等动物的消化道的排泄口