adj. describing the state of colour vision of those who can appreciate only two of the three primary colours. People with such vision match any given colour by a mixture of the two they can distinguish. Compare trichromatic.
adj. describing or relating to the normal state of colour vision, in which a person is sensitive to all three of the primary colours (red, green, and blue) and can match any given colour by a mixture of these three. Compare dichromatic; monochromat.... trichromatic
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