different between dichromatic vs dichromatism

English

Etymology

di- +? Ancient Greek ????? (khrôma, “color”) +? -ic.

Adjective

dichromatic (comparative more dichromatic, superlative most dichromatic)

1. having two colors.
2. (pathology) having a form of colorblindness in which only two of the three primary colors can be distinguished
3. (zoology) having two independent channels for conveying color information in the eye.
4. (biology) occurring or existing in two different ornamentations or colors, typically as a form of sexual dimorphism.
5. (optics) having two hues, either of which may be visible depending on both the concentration of the absorbing substance and the depth or thickness of the medium traversed, such as in pumpkin seed oil. A form of polychromatism.
6. (optics) exhibiting dichroism; dichroic.

Synonyms

• (having two colors): bichrome, bicolour, bicoloured, duocolor, two-tone
• heterochromatic
• heterochromic

Related terms

• dichromacy
• dichromat

Translations

Further reading

• dichromacy on Wikipedia.Wikipedia
• sexual dimorphism on Wikipedia.Wikipedia (section: Ornamentation / coloration)
• dichromatism on Wikipedia.Wikipedia (optics)

Anagrams

• chromatidic, midthoracic

English

Etymology

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

     There long had been a bias among researchers to think of the evolution of sexual dichromatism as driven by changes in male coloration.

Related terms

• monochromatism
• dichromatism
• trichromatism