noun, noun or participle which takes 'suru', intransitive verb
precipitation; deposition; settlement
Technical term for particles settling out of a liquid, used in chemistry, geology, and water treatment. Also used as a suru-verb.
溶液中の不純物が沈殿した。
Impurities in the solution precipitated.
川の水を静かに置くと、泥が沈殿する。
If you let river water sit still, the mud settles.