excretion

名词 excretion:

1. the bodily process of discharging waste matter
   同义词：elimination, evacuation, excreting, voiding
2. waste matter (as urine or sweat but especially feces) discharged from the body
   同义词：body waste, excreta, excrement, excretory product

ex.cre.tion

n.（名词）
The act or process of discharging waste matter from the blood, tissues, or organs.
排泄：从血液、组织或器官中分离废物的动作或过程
The matter, such as urine or sweat, that is so excreted.
废物：尿或汗等由机体排出的废物