dichromatism

2 definitions found

dichromatism - Collaborative International Dictionary of English v.0.48 :

  Dichromatism \Di*chro"ma*tism\, n.
     The state of being dichromatic.
     [1913 Webster]

dichromatism - WordNet (r) 2.1 (2005) :

  dichromatism
      n 1: 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) [syn: dichromacy, dichromatism,
           dichromatopsia, dichromia, dichromasy]