absorption band absorption • absorption bands · · · Info · Definitions · Characters · · absorption band · · Text Common · · Latin · · Scripts 15 · · Length 4 · · Syllables Definitions · · · (noun) a dark band in the spectrum of white light that has been transmitted through a substance that exhibits absorption at selective wavelengths. Synonyms: absorption band. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074