absorptivity

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

Origin of absorptivity

First recorded in 1860–65; absorptive + -ity
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British Dictionary definitions for absorptivity

absorptivity

noun
  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
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