dichromatism

English

Etymology

From di- +‎ chromatism.

Noun

dichromatism (countable and uncountable, plural dichromatisms)

  1. The condition of being dichromatic
  2. (pathology) A form of colourblindness in which only two of the three primary colours can be distinguished
  3. (biology) The condition when male and female birds have different plumage colors.
    • 2010, Geoffrey E. Hill, Geoffrey Edward Hill, National Geographic Bird Coloration[1]:
      There long had been a bias among researchers to think of the evolution of sexual dichromatism as driven by changes in male coloration.

Derived terms