trichromatism

American  

[trahy-kroh-muh-tiz-uhm] / traɪˈkroʊ məˌtɪz əm /

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.

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trichromatism British  

/ traɪˈkrəʊməˌtɪzəm /

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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Etymology

Origin of trichromatism

First recorded in 1885–90; trichromat(ic) + -ism