sediment

堆積物、沈殿物

液体の底に沈んでたまった小さな固体の粒。

やさしい英語で： Small pieces of solid material that settle at the bottom of a liquid.

• There is sediment in the bottle.
• The river carries sediment down to the sea.
• Scientists examined layers of sediment from the lake.

類義語： deposit

よく使う表現： river sediment, fine sediment, layer of sediment

沈殿させる

液体の中の小さな固体の粒を底に沈めてためること。

やさしい英語で： To cause small solid pieces in a liquid to collect at the bottom.

• The machine sediments the particles.
• We sedimented the cells using a centrifuge.
• This method sediments fine material from the liquid.

類義語： settle, deposit

よく使う表現： sediment the particles, sediment a sample

沈殿する

液体の中を沈んでいき、底にたまること。

やさしい英語で： To sink through a liquid and collect at the bottom.

• The particles sediment slowly.
• Fine sand sedimented at the bottom of the tank.
• Leave the mixture until the solids have sedimented.

類義語： settle, sink

よく使う表現： sediment slowly, sediment under gravity