chromogen

[ kroh-muh-juhn, -jen ]

noun

Chemistry.
- 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.

Origin of chromogen

First recorded in 1855–60; chromo- + -gen

Words Nearby chromogen

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.
Synthesis of 2-methyl-4-selenoquinazolone, 2-phenylbenzoselenazole, and its derivatives | Y-Gwan Chen
The chromogen or pigmentary bacteria have occasionally been the means of working miracles.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I | Arnold Cooley
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

chromogen

/ (ˈkrəʊmədʒən) /

noun

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

Browse