absorptivity

American

[ab-sawrp-tiv-i-tee, -zawrp-] / ˈæb sɔrpˈtɪv ɪ ti, -zɔrp- /

noun

Physics.

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

absorptivity British

/ ˌæbsɔːpˈtɪvɪtɪ, -zɔːp- /

noun

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

Etymology

Origin of absorptivity

First recorded in 1860–65; absorptive + -ity

Example Sentences

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See Examples For:

absorptivity

But, in the end he was able to quantify the importance of trace gases on the energy absorptivity of our atmosphere.

From The Guardian ● Mar. 31, 2017

Mr. Hullinger also performed studies of transmissivity, reflectivity and absorptivity of alternate materials which could be used in the Solar Funnel Cooker.

From The BYU Solar Cooker/Cooler by Steven E. Jones

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023