sediment

sediment
noun
  1. [mass noun]matter that settles to the bottom of a liquid; dregs
    沉淀物;渣滓
    ■(Geology)particulate matter that is carried by water or wind and deposited on the surface of the land or the seabed, and may in time become consolidated into rock
    (地质)沉积物
verb
  1. [no obj.]settle as sediment
    沉淀
    ■(of a liquid) deposit a sediment
    (液体)沉淀
    ■[with obj.]deposit (something) as a sediment
    沉积
    the DNA was sedimented by centrifugation.
    DNA被用离心过滤法沉淀下来。
    [as adj. sedimented]sedimented waste.
    沉积废物。
派生
sedimentation
noun
语源
  1. mid 16th cent.: from French sédiment or Latin sedimentum 'settling', from sedere 'sit'
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