|1.||Also: dichroic having or consisting of only two colours|
|2.||(of animal species) having two different colour varieties that are independent of sex and age|
|3.||able to perceive only two (instead of three) primary colours and the mixes of these colours|
dichromatism di·chro·ma·tism (dī-krō'mə-tĭz'əm)
The state of being dichromatic.
A form of colorblindness in which only two of the three fundamental colors can be distinguished due to a lack of one of the retinal cone pigments. Also called dichromatopsia, dyschromatopsia, parachromatopsia.