chromophore
|chro-mo-phore|
🇺🇸
/ˈkroʊməfɔːr/
🇬🇧
/ˈkrəʊməfɔː/
color-bearing, light-absorbing group in a molecule
Etymology
'chromophore' originates from International Scientific Vocabulary, ultimately from Greek, specifically the elements 'chroma' meaning 'color' and '-phoros' (from 'pherein') meaning 'bearing' or 'carrying.'
'Chromophor' in German dye chemistry influenced the English formation, and the term became the modern English word 'chromophore' in the late 19th century through scientific usage combining 'chromo-' + '-phore.'
Initially, it meant a color-bearing group in dye molecules; over time, its use broadened to include light-absorbing groups in biological macromolecules and photophysical contexts while retaining the core sense of ‘color/light-bearing unit.’
Meanings by Part of Speech
Noun 1
in chemistry, the part of a molecule that absorbs visible light and is responsible for its color.
The chromophore in the dye absorbs blue light, making the solution appear red.
Synonyms
Noun 2
in biochemistry, a light-absorbing moiety within a biomolecule (such as a protein) that can initiate photochemical or photophysical processes, sometimes producing fluorescence.
In GFP, the chromophore forms spontaneously within the protein's core.
Synonyms
Last updated: 2025/08/11 16:15
