noun
sediment; dregs; lees; grounds
Refers to solid particles that settle at the bottom of a liquid, such as in wine, coffee, or tea. Often used in contexts like 澱が溜まる or 澱を取る.
ワインの澱を残さずに注ぐのは難しい。
It's difficult to pour wine without leaving the sediment behind.
コーヒーを飲み終わると、カップの底に澱が残っていた
When I finished the coffee, there were grounds left at the bottom of the cup.
沈殿物 is a more technical or formal term for precipitate or sediment, often used in scientific contexts, while 澱 is more common in everyday language for dregs or lees.
かす refers to leftover solids or waste after extraction (e.g., sake lees, soy pulp), whereas 澱 specifically refers to sediment that settles naturally in a liquid.
The kanji 澱 is composed of 氵 (water) and 殿 (palace, lord), but the exact derivation is uncertain. The reading おり is a native Japanese word for sediment or dregs.