Absorption

  1. Penetration of molecules into the bulk of a solid or liquid, forming either a solution or compound. Absorption can be a chemical process or a physical process.

  2. Transformation of radiant energy to a different form of energy by the interaction of matter, depending on temperature and wavelength.

  3. Transport of the products of digestion from the intestinal tract into the blood.

See also: Absorb, Absorption Coefficient, Extinction, Sorption.

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Subjects: Optics Physics