Urination is the noun for the act of passing urine — the event itself, not the liquid.

Urination是 is the noun for the act of passing urine是指排尿這個動作的名詞 — the event itself是那個動作本身, not the liquid而不是那個液體。

Like urinate, it belongs to doctors, health articles, and forms; nobody says it over lunch.

Like urinate就像 urinate 一樣, it belongs to這個字屬於 doctors, health articles, and forms醫生、衛教文章和表格用語; nobody says it over lunch沒有人會在吃午餐時說這個字。

It shows up most often with a word describing something wrong: **frequent urination** (needing to go far too often, one of the classic warning signs of diabetes), **painful urination** (burning, usually an infection), **difficulty urinating**, or **blood in the urine**.

It shows up most often它最常 with a word describing something wrong跟形容「不對勁」的字一起出現: frequent urination頻尿（needing to go far too often指太常需要跑廁所, one of the classic warning signs of diabetes是糖尿病的典型警訊之一）, painful urination排尿疼痛（burning指有灼熱感, usually an infection通常是感染）, difficulty urinating排尿困難, or blood in the urine或是尿裡有血。

It is uncountable — you talk about urination in general, not "a urination" or "three urinations". If you want the substance instead of the act, that is urine; if you want the everyday word for the act, that is "peeing" or just "going to the toilet".

It is uncountable它是不可數名詞 — you talk about urination in general你講的是排尿這件事整體, not "a urination" or "three urinations"不會說「a urination」或「three urinations」。If you want the substance instead of the act如果你要講的是那個「物質」而不是動作, that is urine那就是 urine（尿液）; if you want the everyday word for the act如果你要講動作的日常說法, that is "peeing" or just "going to the toilet"那就是「peeing」或直接說「去上廁所」。