Chromogen vs. Chromophore: What's the Difference?

Chromogen and Chromophore Definitions
Chromogen
(Chemistry) A substance capable of conversion into a pigment or dye.
Chromophore
Any of various chemical groups that absorb light of certain wavelengths and when present in an organic compound, such as a dye or pigment, are responsible for the color of the compound.
Chromogen
(Biology) A strongly pigmented or pigment-generating organelle, organ, or microorganism.
Chromophore
(chemistry) that part of the molecule of a dye responsible for its colour
Chromogen
(chemistry) Any substance that lacks colour, but can be converted into a pigment or dye.
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Chromophore
(chemistry) (more generally) the group of atoms in a molecule in which the electronic transition responsible for a given spectral band is located
Chromogen
(biology) A strongly pigmented organelle or organism.
Chromophore
Any chemical group or residue (as NO2; N2; or O2) which imparts some decided color to the compound of which it is an ingredient.
Chromogen
Vegetable coloring matter other than green; chromule.
Chromophore
The chemical group that gives color to a molecule
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Chromogen
Any colored compound, supposed to contain one or more chromophores.
Chromogen
A compound that can be converted to a pigment