Medical Term:

dichromatism

Pronunciation: dī-krō′mă-tizm

Definition:

  1. The state of being dichromatic (1).
  2. The abnormality of color vision in which only two of the three retinal cone pigments are present, as in protanopia, deuteranopia, and tritanopia.

Synonym(s): dichromatopsia

[G. di-, two, + chrōma, color]

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