chro·​mo·​gen | \ ˈkrō-mə-jən How to pronounce chromogen (audio) \

Definition of chromogen

1 : a precursor of a biochemical pigment
2 : a pigment-producing microorganism

Examples of chromogen in a Sentence

Recent Examples on the Web Whitening agents, which tend to be bleaching chemicals like carbamide peroxide or hydrogen peroxide, break up the chromogen so that it can be easily washed away. Sarah Jacob, SELF, 13 Aug. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chromogen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of chromogen

1858, in the meaning defined at sense 1

History and Etymology for chromogen

chromo- + -gen

Note: Term introduced by the Scottish chemist Thomas Charles Hope (1766-1844) in "Observations and Experiments on the Coloured and Colourable Matters in the Leaves and Flowers of Plants," a communication read on March 21, 1836, to the Royal Society of Edinburgh and published in the Society's Transactions, vol. 1, no. 6 (1836), pp. 126-28.

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The first known use of chromogen was in 1858

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Cite this Entry

“Chromogen.” Dictionary, Merriam-Webster, Accessed 12 Aug. 2022.

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More Definitions for chromogen


chro·​mo·​gen | \ ˈkrō-mə-jən How to pronounce chromogen (audio) \

Medical Definition of chromogen

1a : a precursor of a biochemical pigment
b : a compound not itself a dye but containing a chromophore and so capable of becoming one
2 : a pigment-producing microorganism many bacteria are chromogens

Other Words from chromogen

chromogenic \ ˌkrō-​mə-​ˈjen-​ik How to pronounce chromogen (audio) \ adjective

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