absorptivity

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. The quality of being [[absorptive]]; [[absorptiveness]]. {{defdate|First attested in the mid 19^th century.}}<ref name=SOED>{{R:SOED5|page=9}}</ref>
2. {{lb|en|thermodynamics}} The fraction of radiation absorbed by a surface to the total radiation incident on the surface. {{defdate|First attested in the mid 19^th century.}}<ref name=SOED/>
3. {{lb|en|analytical chemistry}} The constant ''a'' in the Beer's law relation ''A'' = ''abc'', where ''A'' is the absorbance, ''b'' the path length, and ''c'' the concentration of solution. ''Also known as [[absorptive power]]. Formerly known as absorbency index; absorption constant; [[extinction coefficient]].''

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.