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- A class of processes by which one material is taken up by another. Absorption is refers to the process of the penetration of one material into another; adsorption to the action of one material being collected on another's surface.
[Crutzen, Paul J. and Graedel, T.E. Atmospheric Change: An Earth System Perspective. pg. 435.]
Source: Atmospheric Chemistry Glossary
- The action of soaking up or attracting substances; process used in many pollution control systems.
Source: Terms of the Environment