- 1. 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. Source: opted
- 2. n. dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red Source: wordnet
- 3. 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. Nichol. Source: webster
- 4. Inability to perceive or distinguish certain colors, esp. red;color blindness. It has various forms and degrees. So called from thechemist Dalton, who had this infirmity. Nichol. Source: adambom
- 5. n dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red Source: ecdict
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daltonism
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