1. Genetic inability to distinguish differences in hue
   "His colour blindness prevented him from pursuing a career as a pilot";
   - color blindness [US], color vision deficiency [US], colour vision deficiency [Brit, Cdn]

Type of: birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disease, congenital disorder, vision defect, visual defect, visual disorder, visual impairment

Encyclopedia: Colour blindness