- any substance found in organic fluids that forms colored compounds when oxidized.
- a colored compound that, though not a dye itself, can be converted into a dye.
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Words nearby chromogen
Example sentences from the Web for chromogen
In other words, an auxochrome in addition to the chromophore group transforms a colorless chromogen into a colored one.
The chromogen or pigmentary bacteria have occasionally been the means of working miracles.
A colorless chromogen is formed, which oxidizes to the green pigment in the air.The Nature of Animal Light|E. Newton Harvey