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沈積物 (ちんせきぶつ) Japanese meaning | Kotomora

沈ちん積せき物ぶつ

ち

ん

せ

き

ぶ

つ

Meanings

1

noun

deposit; sediment; sedimentation

Technical term used in geology, chemistry, and environmental science for material that settles out of a fluid.

河か川せんの沈ちん積せき物ぶつを分ぶん析せきすると、過か去この環かん境きょうがわかる。
Analyzing river sediment reveals past environmental conditions.

この湖みずうみの底そこには厚あつい沈ちん積せき物ぶつの層そうがある。

There is a thick layer of sediment at the bottom of this lake.

Kanji

沈sink, be submerged, subside
積volume, product (x*y), acreage
物thing, object, matter

Similar words

堆たい積せき物ぶつ
堆積物 is a more common general term for sediment or deposit, while 沈積物 emphasizes settling from suspension.
沈ちん殿でん物ぶつ
沈殿物 is often used in chemistry for precipitate; 沈積物 is broader and includes natural sedimentation.

Etymology

Compound of 沈 (settle, sink), 積 (accumulate), and 物 (thing). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of settled material.