dichromacy

(redirected from Dichromatic colour vision)
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Noun1.dichromacy - 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)
color blindness, color vision deficiency, colour blindness, colour vision deficiency - genetic inability to distinguish differences in hue
yellow-blue color blindness, yellow-blue dichromacy - confusion of yellow and blue
References in periodicals archive ?
Moreover, with the two cone types, bats have the prerequisite for dichromatic colour vision, a condition common in mammals.