trichromatism

[ trahy-kroh-muh-tiz-uhm ]

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 ).

Word History and Origins

Origin of trichromatism¹

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