trichromicadj.
/trʌɪˈkrəʊmɪk/ Three-coloured, three-colour; = trichromatic adj.In quot. 1900 applied to abnormal vision in which only three different colours are perceived.
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the world > matter > colour > variegation > [adjective] > three colours
tricoloured1795
trichroic1881
trichromic1881
photo-trichromatic1896
trichrome1918
tricolour1979
1881 J. Le Conte Sight 63 Herschel regarded normal vision as trichromic.
1897 Daily News 6 Jan. 3/3 By the method of trichromic photography..the colours of natural objects were shown.
1900 Edridge-Green in Lancet 4 Aug. 323/1 A person whose colour vision is trichromic may see a spectrum of the same length as the normal-sighted, but he sees only three colours—red, green, and violet.
This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2018).
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adj.1881