[ ab-sawrp-tiv-i-tee, -zawrp- ]

  1. the property of a body that determines the fraction of incident radiation absorbed or absorbable by the body.

Origin of absorptivity

First recorded in 1860–65; absorptive + -ity

Words Nearby absorptivity

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British Dictionary definitions for absorptivity


/ (ˌæbsɔːpˈtɪvɪtɪ, -zɔːp-) /

  1. physics a measure of the ability of a material to absorb radiation, equal to the internal absorptance of a homogeneous layer of the material under conditions in which the path of the radiation has unit length and the boundaries of the layer have no influence

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012