coefficient of absorption
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Related to coefficient of absorption: sound absorption coefficient
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|Noun||1.||coefficient of absorption - 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; "absorptance equals 1 minus transmittance"|
coefficient - a constant number that serves as a measure of some property or characteristic