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.
a chromogenic bacterium.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use chromogen in a sentence
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
British Dictionary definitions for chromogen
a compound that forms coloured compounds on oxidation
a substance that can be converted to a dye
a bacterium that produces a pigment
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012