absorption band

noun

, Physics.

1. a dark band in the absorption spectrum of a substance, corresponding to a range of wavelengths for which the substance absorbs more strongly than at adjacent wavelengths.

Word History and Origins

Origin of absorption band¹

First recorded in 1865–70

Example Sentences

Where the curve is highest there the absorption band is thickest; where the curve is lowest there the band is weak.

From Project Gutenberg