Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The quality or condition of having or exhibiting two colors.
  • noun 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 The Century Dictionary.

  • noun 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 the GNU version of the Collaborative International Dictionary of English.

  • noun The state of being dichromatic.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

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

  • 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)

Etymologies

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Examples

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

    3 species of monkey you should meet Field Notes 2008

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

    Archive 2008-10-01 Field Notes 2008

  • 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 1914

  • 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.

    Through the Brazilian Wilderness Theodore Roosevelt 1888

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

    Practical Fishkeeping 2010

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

    Practical Fishkeeping 2010

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

    BioMed Central - Latest articles 2010

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

    Think Progress » Adding Insult to Illigitimacy 2005

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