sediment

sediment

英 ['sedɪm(ə)nt]
　　美 ['sɛdɪmənt]

n. 沉積；沉淀物

中文詞源：

sediment 沉淀物，沉積物

來自拉丁語 sedere,坐下，詞源同 sit,seat.-ment,名詞後綴。引申比喻義沉積物，沉淀物。

例句：

1. The sediment settled and the water was clear.
雜質沉淀後,水變清瞭.

2. The sediment of coffee will settle.
咖啡渣會沉淀下去.

3. Many organisms that die in the sea are soon buried by sediment.
海洋裡死亡的許多生物會很快被沉淀物掩埋。

4. Deposition is the laying down of sediment that has been transported.
沉積是已搬運的物質再沉積下來.

5. They sediment toward the bottom of the centrifuge tube at a velocity.
它們以某一速度向管底方向沉降.