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

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.

Keep scrolling for more

Learn More About chromogen

Time Traveler for chromogen

Time Traveler

The first known use of chromogen was in 1858

See more words from the same year

Statistics for chromogen

Cite this Entry

“Chromogen.” Dictionary, Merriam-Webster, Accessed 19 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

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

More from Merriam-Webster on chromogen Encyclopedia article about chromogen


Test Your Vocabulary

Return of Name that Color!

  • a light greenish blue color
  • Name that color:
Name That Thing

Test your visual vocabulary with our 10-question challenge!

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!