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4 definitions found

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


From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 Dal·ton·ism /-ṇˌɪzəm/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 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.

From: WordNet (r) 2.0

      n : dichromacy characterized by a lowered sensitivity to green
          light resulting in an inability to distinguish green and
          purplish-red [syn: deuteranopia, green-blindness]