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trichromatism

[trahy-kroh-muh-tiz-uh m]
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noun
  1. the quality or condition of being trichromatic.
  2. the use or combination of three colors, as in printing or photography.
  3. Ophthalmology. normal color vision.Compare monochromatism(def 2), dichromatism(def 2).
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Origin of trichromatism

First recorded in 1885–90; trichromat(ic) + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for trichromatism

trichromatism

noun
  1. the use or combination of three primary colours for colour reproduction in photography, printing, television, etc
  2. rare the state of being trichromatic
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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