from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The quality or condition of being dichromatic.
  • n. Pathology A form of colorblindness in which only two of the three fundamental colors can be distinguished due to a lack of one of the cone pigments.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The condition of being dichromatic
  • n. A form of colourblindness in which only two of the three primary colours can be distinguished

from the GNU version of the Collaborative International Dictionary of English

  • n. The state of being dichromatic.

from The Century Dictionary and Cyclopedia

  • n. The quality of being dichromatic; the state or condition of normally presenting two different colors or systems of coloration: in zoology, said of animals which, being ordinarily of a given color, regularly or frequently exhibit a different coloration, due to melanism, erythrism, etc.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. 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)


Sorry, no etymologies found.


  • This extreme sexual dichromatism different color morphs is very, very rare.

    Archive 2008-10-01

  • The pumas were for the most part bright red, but some were reddish gray, there being much the same dichromatism that I found among their Colorado kinsfolk.

    IV. The Headwaters of the Paraguay

  • These dwarf cichlids are characterised by distinct sexual dimorphism and dichromatism - so males and females differ markedly in colour and size.

    Practical Fishkeeping

  • This does not mean that female carotenoid coloration is non-adaptive or maladaptive, because sexual dichromatism could evolve if it were maladaptive.

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  • sport shoes sport shoes The usquebay dichromatism of the road to Ronsdale was seventy-five-millimetre and hilly.

    Think Progress » Adding Insult to Illigitimacy


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