形容詞 excretory:

1. of or relating to the process of excretion

1. Lacking normal voluntary control of excretory functions.
   大小便失禁缺乏排瀉功能的正常自動控制的
2. The excretory opening of the digestive tract in animals such as birds, reptiles, amphibians, and fish.
   肛門鳥、爬行動物、兩棲動物以及魚等動物的消化道的排泄口
3. Serving to carry waste out of the body; excretory.
   排泄的用來把廢物帶出體外的; 排泄的

ex.cre.to.ry

adj.（形容詞）
Of, relating to, or used in excretion:
排泄的：屬于、關(guān)于或用于排泄的：
例句：
excretory organs.
排泄器官