noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A measure of the absorption of electromagnetic radiation as it passes through a specific substance; the fraction of incident radiation absorbed by unit mass or unit thickness; absorptivity.
2. 2
   a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber wordnet

Synonyms

All synonyms

absorptanceabsorptivitycoefficient of absorption