absorptance
[ ab-sawrp-tuhns, -zawrp- ]
/ æbˈsɔrp təns, -ˈzɔrp- /
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noun Physics, Optics.
the ratio of the amount of radiation absorbed by a surface to the amount of radiation incident upon it.
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Compare reflectance, transmittance.
Origin of absorptance
Words nearby absorptance
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for absorptance
absorptance
absorption factor
/ (əbˈsɔːptəns, -ˈzɔːp-) /
noun
physics a measure of the ability of an object to absorb radiation, equal to the ratio of the absorbed radiant flux to the incident flux. For a layer of material the ratio of the flux absorbed between the entry and exit surfaces of the layer to the flux leaving the entry surface is the internal absorptanceSymbol: α Compare reflectance, transmittance
Word Origin for absorptance
C20: absorption + -ance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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