dichromasy




Definitions of dichromasy
  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, dichromatism, dichromatopsia, dichromia
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    types:

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    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

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