DICT.TW Dictionary Taiwan

 daltonism
 先天性色盲,紅綠色盲

 Dal·ton·ism /-ṇˌɪzəm/ 名詞
 色盲

 Dal·ton·ism n. Inability to perceive or distinguish certain colors, esp. red; color blindness. It has various forms and degrees. So called from the chemist Dalton, who had this infirmity.
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 Daltonism
      n : dichromacy characterized by a lowered sensitivity to green
          light resulting in an inability to distinguish green and
          purplish-red [syn: deuteranopia, green-blindness]