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Noun: absorption coefficient  ub'sorp-shun,kow-u'fish-unt
  1. A measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber
    "absorption coefficient equals 1 minus transmittance";
    - coefficient of absorption, absorptance

Derived forms: absorption coefficients

Type of: coefficient

Encyclopedia: Absorption coefficient