adsorption

/ædˈsɔːrpʃən/
noun
  1. The process by which a gas or liquid forms a thin layer on the surface of a solid or liquid.
    • Scientists study adsorption to understand how pollutants stick to soil particles.
    • The adsorption of gases onto metal surfaces is important in many industrial processes.
    • Adsorption is how a charcoal filter removes impurities from drinking water.
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