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chromogen

[kroh-muh-juh n, -jen]
noun
  1. Chemistry.
    1. any substance found in organic fluids that forms colored compounds when oxidized.
    2. a colored compound that, though not a dye itself, can be converted into a dye.
  2. a chromogenic bacterium.
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Origin of chromogen

First recorded in 1855–60; chromo- + -gen
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for chromogen

chromogen

noun
  1. a compound that forms coloured compounds on oxidation
  2. a substance that can be converted to a dye
  3. a bacterium that produces a pigment
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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
chromogen in Medicine

chromogen

(krō′mə-jən)
n.
  1. A substance that lacks definite color but may be transformed into a pigment.
  2. A strongly pigment-generating or pigmented organelle, organ, or microorganism.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.