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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 dichromasy
 二色性色覺盲

From: WordNet (r) 2.0

 dichromasy
      n : 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]