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trichromatism

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Trichromatism
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tri⋅chro⋅ma⋅tism

  [trahy-kroh-muh-tiz-uhm]
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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).
Origin:
1885–90; trichromat(ic) + -ism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Trichromatism
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tri·chro·mat·ic   (trī'krō-māt'ĭk)   
adj.  

  1. Of, relating to, or having three colors, as in photography or printing.

  2. Having perception of the three primary colors, as in normal vision: trichromatic vision; a trichromatic individual.

tri·chro'ma·tism (trī-krō'mə-tĭz'əm) n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: tri·chro·ma·tism
Pronunciation: (')trI-'krO-m&-"tiz-&m
Function: noun
1 : the quality or state of beingtrichromatic
2 : color vision based on the perception of three primary colors and especially red, green and blue —compare DEUTERANOMALY, PROTANOMALY
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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