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tri·chro·ma·tism | \ (ˌ)trī-ˈkrō-mə-ˌti-zəm 
\
\Definition of trichromatism
: color vision based on the perception of three primary colors and especially red, green, and blue
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trichromatism
nountri·chro·ma·tism | \ (ˈ)trī-ˈkrō-mə-ˌtiz-əm \
\Medical Definition of trichromatism
1 : the quality or state of being trichromatic
2 : color vision based on the perception of three primary colors and especially red, green and blue — compare deuteranomaly, protanomaly
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Time Traveler for trichromatism
The first known use of trichromatism was circa 1895
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