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沉降

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沉降是指各种物质下沉积聚的过程，原因可以是地心吸力、离心力或电磁力。不同大小的东西都可以沉降，例如流水中的大石头、尘土或花粉的悬浮液，至单个分子，例如蛋白质和肽的细胞悬浮液。沉降可以指:

沉淀：悬浮液的粒子下沉积聚的过程。
在地理学，沉降通常是沉积物的堆积作用，与侵蚀作用的相反，亦即沉积物迁移的最终结果，最后会形成沉积岩，过程包括跃移。
在其他化学及环境学领域等则用来描述小粒子和分子的运动。
在生物工业则是指将细胞分离自介质的过程。

另见

规范控制数据库：各地	德国以色列美国日本

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