dichromia

Definitions of dichromia

1. noun

   a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)
   synonyms: dichromacy, dichromasy, dichromatism, dichromatopsia

   types:

   red-green color blindness, red-green colour blindness, red-green dichromacy

   confusion of red and green

   yellow-blue color blindness, yellow-blue dichromacy

   confusion of yellow and blue

   Daltonism, deuteranopia, green-blindness

   dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red

   protanopia, red-blindness

   dichromacy characterized by lowered sensitivity to long wavelengths of light resulting in an inability to distinguish red and purplish blue

   tetartanopia, yellow-blindness

   a form of dichromacy characterized by lowered sensitivity to yellow light; so rare that its existence has been questioned

   blue-blindness, tritanopia

   rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow

   type of:

   color blindness, color vision deficiency, colour blindness, colour vision deficiency

   genetic inability to distinguish differences in hue