noun
- 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.
- usage: "absorptance equals 1 minus transmittance"
- synonyms: absorption coefficient, coefficient of absorption
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). absorptance. Retrieved September 20, 2026, from http://smartdefine.org/absorptance/definitions/1254354 |
| Chicago | WordNet. 2010. "absorptance" http://smartdefine.org/absorptance/definitions/1254354 (accessed September 20, 2026). |
| Harvard | WordNet 2010, absorptance, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/absorptance/definitions/1254354>. |
| MLA | WordNet. "absorptance" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/absorptance/definitions/1254354> |