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excretion of sth
The excretion of salt is regulated by the kidneys.
盐分的排泄由肾脏调节。
排泄；排泄作用
先理解核心含义，再看它在真实句子里的用法。
排泄；排泄作用
the bodily process of discharging waste matter
The excretion of salt is regulated by the kidneys.
盐分的排泄由肾脏调节。
指排泄的生理过程，区别于排泄物。
排出无用物质的过程,尤指从体内；排泄的行为。
The process of removing or ejecting material that has no further utility, especially from the body; the act of excreting.
以此方式排出的物质,尤指尿液或粪便。
Something excreted in that manner, especially urine or feces.
The skin helps with excretion by removing waste through sweat.
皮肤通过出汗帮助排泄废物。
A healthy diet makes regular excretion easier for the body.
健康的饮食让身体更容易进行规律排泄。
After drinking more water, his excretion of waste products became more regular.
多喝水后，他的废物排泄变得更有规律。
The excretion of salt is regulated by the kidneys.
盐分的排泄由肾脏调节。
Excretion from the kidneys removes waste from the blood.
肾脏的排泄作用清除血液中的废物。
excretion 既可指排泄过程（不可数），也可指排泄物（可数，常用复数）。
The nurse disposed of the patient's bodily excretions.
护士处理了病人的身体排泄物。
Not this
The body can excretion waste.
Use this
The body can excrete waste.
can 是情态动词，后面必须接动词原形；excretion 是名词，excrete 才是动词，且 excrete 可直接带宾语 waste，因此把 excretion 改为 excrete。
Not this
The excretion from sweat helps cool the body.
Use this
The excretion of sweat helps cool the body.
表示“排泄某物”时，excretion 后接介词 of，说明被排出的物质；from 表示来源，语义不当。这里要表达“汗液的排出”，所以用 of sweat。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
废物排泄
The kidneys play a major role in the excretion of waste from the body.
肾脏在人体废物排泄中起主要作用。
肾脏排泄
Renal excretion of excess salt helps maintain blood pressure.
肾脏排泄多余的盐分有助于维持血压。
尿排泄
Urinary excretion of the drug was measured over 24 hours.
对该药物24小时内的尿排泄量进行了测量。
排泄速率
The excretion rate of the toxin is higher in younger patients.
年轻患者的毒素排泄速率更高。
药物排泄
Impaired liver function can slow drug excretion.
肝功能受损会减慢药物排泄。
Use excretion naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
ex=向外，cretion像secretion（分泌）；分泌物向外排出，即排泄。
语域：formal 常见场景：生物学/医学教材、健康科普文章、体检/医疗报告 excretion 通常用于正式或专业语境，比较常见于生物学、医学及健康科普的书面材料；日常口语中较少直接使用。
表示“排泄（过程）”时通常不可数；表示“排泄物”时可用作可数名词，复数形式为 excretions。
Dictionary facts from ECDICT, WIKTIONARY.