chromophore

/ˈkroʊməfɔr/
noun
  1. The part of a molecule that gives it its color by absorbing certain wavelengths of light.
    • The chromophore in the dye absorbs blue light, making the fabric appear red.
    • In photosynthesis, the chromophore in chlorophyll captures sunlight.
    • Chemists modified the chromophore to create a brighter pigment.
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