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absorptance

noun
ab·​sorp·​tance | \ əb-ˈsȯrp-tən(t)s How to pronounce absorptance (audio) , -ˈzȯrp-\

Definition of absorptance

: the ratio of the radiant energy absorbed by a body to that incident upon it

First Known Use of absorptance

circa 1931, in the meaning defined above

History and Etymology for absorptance

absorpt- (as in absorptive) + -ance

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