dichromatic vision

dichromatic vision
dichromatic vision,
= dichromatism. (Cf.dichromatism)

Useful english dictionary. 2012.

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  • dichromatic vision — a color vision deficiency (q.v.) in which one of the three cone pigments is missing altogether. The most common forms are protanopia and deuteranopia, each of which is transmitted by X linked inheritance and affects about 1 per cent of white… …   Medical dictionary

  • dichromatic — 1. Having or exhibiting two colors. 2. Relating to dichromatism (2). * * * di·chro·mat·ic .dī krō mat ik adj 1) having or exhibiting two colors 2) of, relating to, or exhibiting dichromatism * * * adj. describing the state of colour vision of… …   Medical dictionary

  • dichromatic — adj. describing the state of colour vision of those who can appreciate only two of the three primary colours. People with such vision match any given colour by a mixture of the two they can distinguish. Compare: trichromatic …   The new mediacal dictionary

  • dichromatic — adj. 1 two coloured. 2 a (of animal species) having individuals that show different colorations. b having vision sensitive to only two of the three primary colours. Derivatives: dichromatism n. Etymology: DI (1) + Gk khromatikos f. khroma atos… …   Useful english dictionary

  • Equine vision — The equine eye is the largest of any land mammal. [ Soemmerring DW. A comment on the horizontal sections of eyes in man and animals. Anderson SR, Munk O, eds. Schepelern HD, transl. Copenhagen: Bogtrykkeriet Forum; 1971.] [ Knill LM, Eagleton RD …   Wikipedia

  • Evolution of color vision — Color vision, a proximate adaptation of the vision sensory modality, allows for the discrimination of light based on its wavelength components. Contents 1 Invertebrates 2 Vertebrates 3 See also 4 Referen …   Wikipedia

  • color vision deficiency — any deviation from normal color vision; these conditions are popularly called by the misleading term color blindness. See monochromatic vision, dichromatic vision, protanopia, deuteranopia, tritanopia, and tetartanopia …   Medical dictionary

  • Color vision — White light shone onto a green surface is perceived as green by the human eye, and processed as such in the brain s visual cortex …   Wikipedia

  • Evolution of color vision in primates — The evolution of color vision in primates is unique compared to most eutherian mammals. While our remote vertebrate ancestors possessed trichromacy, our nocturnal, warm blooded, mammalian ancestors lost one of three cones in the retina at the… …   Wikipedia

  • Color blindness — Colorblind and Colourblind redirect here. For other uses, see Colorblind (disambiguation). Color blindness or color deficiency Classification and external resources An 1895 illustration of normal vision and various kinds of color blindness …   Wikipedia

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