dichromatism

US:USA pronunciation: respellingUSA pronunciation: respelling(dī krō′mə tiz′əm)


WordReference Random House Unabridged Dictionary of American English © 2026
di•chro•ma•tism  (dī krō′mə tiz′əm),USA pronunciation n. 
  1. Optics, Zoologythe quality or state of being dichromatic.
Also called di•chro•ma•top•si•a  (dī krō′mə top′sē ə).USA pronunciation [Ophthalm.]a defect of vision in which the retina responds to only two of the three primary colors. Cf. monochromatism (def. 2), trichromatism (def. 3).
  • dichromat(ic) + -ism 1880–85

'dichromatism' also found in these entries (note: many are not synonyms or translations):

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