Absorptance meaning

əb-zôrptəns, -sôrp-
The ratio of absorbed to incident radiation.
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(optics, physics) Absorbed radiation and incident radiation in a ratio format; a measurement that shows how well a surface absorbs radiation. [First attested in the mid 20th century.]
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Origin of absorptance

  • absorpt(ion) –ance

    From American Heritage Dictionary of the English Language, 5th Edition

  • Circa 20th century, from absorption +"Ž -ance.

    From Wiktionary