堆たい積せき物ぶつ

noun

sediment; deposit

Refers to material that settles or accumulates, often in geological, environmental, or industrial contexts.

• 川かわ底ぞこに堆たい積せき物ぶつがたまっている。

  Sediment has accumulated on the riverbed.

• この地ち域いきの堆たい積せき物ぶつから化か石せきが発はっ見けんされた。

  Fossils were discovered in the deposits of this area.