dichromatism


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dichromatism

 [di-kro´mah-tizm]
1. the quality of existing in or exhibiting two different colors.

di·chro·ma·tism

(dī-krō'mă-tizm),
1. The state of being dichromatic (1).
2. The abnormality of color vision in which only two of the three retinal cone pigments are present, as in protanopia, deuteranopia, and tritanopia. Synonym(s): dichromatopsia
[G. di-, two, + chrōma, color]

dichromatism

/di·chro·ma·tism/ (di-kro´mah-tizm)
1. the quality of existing in or exhibiting two different colors.

dichromatism

(dī-krō′mə-tĭz′əm) also

dichromism

(-mĭz′əm)
n.
1. The quality or condition of having or exhibiting two colors.
2. 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.

di′cro·mat′ic (-măt′ĭk) adj.

di·chro·ma·tism

(dī-krō'mă-tizm)
1. The state of being dichromatic (1).
2. The abnormality of color vision in which only two of the three retinal cone pigments are present, as in protanopia, deuteranopia, and tritanopia.
Synonym(s): dichromatopsia.
[G. di-, two, + chrōma, color]

dichromatism

Partial color blindness in which only two of the primary colours can be perceived.

dichromatism

A form of colour vision deficiency in which all colours can be matched by a mixture of only two primary colours. The spectrum appears as consisting of two colours separated by an achromatic area (the neutral point). There are several types of dichromatism: deuteranopia, protanopia and tritanopia. Syn. daltonism; dichromatopsia; dichromatic vision. See defective colour vision; visual pigment.

dichromatism

1. the quality of existing in or exhibiting two different colors.
2. dichromatopsia.
References in periodicals archive ?
Sexual dichromatism and temporary color changes in the reproduction of fishes.
Sexual dichromatism in the yellow-breasted chat lcteria virens: spectrophotometric analysis and biochemical basis.
The presence of sexual dichromatism in teleosts (usually displayed by males, but also by females of several groups) is typically associated with an increase in conspicuousness.
Permanent dichromatism has not been described in the Epinephelinae but is common in the Anthiinae in association with sex change and sexual dimorphism (Shapiro 1981).
Most studies of avian sexual dichromatism have focused on songbirds (Irwin 1994, Gray 1996, Mays et al.
Visual fish transects performed at two sites were used to assess the seasonal frequency of sexual dichromatism in adults.
Plumage dichromatism and thermal ecology of the Eastern Screech-Owl (Otus asio).
The gray color phase described for the species represents a special type of dichromatism, associated only with winter pelage and of only regional occurrence in Texas.
Variation in avian sexual dichromatism in relation to phylogeny and ecology: a review.
Sexual dimorphism and dichromatism in Steere's Liocichla (Liocichla steeru).