1610s, from Latin precipitantem, present participle of praecipitare (see precipitate (v.)). As a noun in chemistry from 1680s. The adjective senses now are taken by precipitate (adj.).
雙語例句
1. For protein crystallization, the main impact of precipitant is on the solvent.
對于蛋白質(zhì)的結(jié)晶，沉淀劑主要在溶劑上產(chǎn)生作用。
來自辭典例句
2. It'shows that good produce can be synthesized by using algin as precipitant.