absorption spectrum 

https://doi.org/10.1351/goldbook.A00043
The wavelength dependence of the absorption cross-section (or absorption coefficient); usually represented as a plot of absorption cross-section versus wavelength λ (or 1λ) of the light.
Source:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2169 [Terms] [Paper]
Citation: 'absorption spectrum' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.A00043 RIS BibTex EndNote
Div. VIPDFTextXMLJSON
Last revised: February 24, 2014