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absorptance: Meaning and Definition of

ab•sorp•tance

Pronunciation: (ab-sôrp'tuns, -zôrp'-), [key]
— n. Physics, Optics.
  1. the ratio of the amount of radiation absorbed by a surface to the amount of radiation incident upon it. Cf. reflectance, transmittance (def. 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
absorbing well absorptiometer
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