名詞 proenzyme:

1. any of a group of compounds that are inactive precursors of enzymes and require some change (such as the hydrolysis of a fragment that masks an active enzyme) to become active
   同義詞：zymogen

pro.en.zyme

n.（名詞）
The inactive or nearly inactive precursor of an enzyme, converted into an active enzyme by proteolysis.Also called zymogen
酶原：酶的非活性或近似非活性的前體，通過蛋白質(zhì)水解過程轉(zhuǎn)變成活性酶也作 zymogen