침전이 · 침전을
precipitation (chemistry), sedimentation
Example
두 용액을 섞자 바닥에 하얀 침전이 생겼어요.
When the two solutions were mixed, a white precipitate formed at the bottom.
Word parts
침 sink+전 sediment
Literally 'sinking sediment'.
Good to know
Weather 'precipitation' is 강수, not 침전; 침전 is only for settling particles.
Related words