泥水をしばらく置くと、土の粒子が沈降して水が澄んでくる。
If you leave muddy water to stand for a while, the soil particles settle and the water clears.
健康診断で赤血球の沈降速度を調べた。
At the checkup they measured my red blood cell sedimentation rate.
浄水場では、汚れを沈降させてから水をろ過する。
At the water treatment plant, impurities are allowed to settle before the water is filtered.