achromatic_vision
1. [ noun ] (physiology,ophthalmology) vision using the rods
Related terms: sight
2. [ noun ] (medicine,ophthalmology) genetic inability to distinguish differences in hue
Synonyms: colour_blindness color_vision_deficiency colour_vision_deficiency color_blindness
Related terms: birth_defect visual_impairment tritanopia protanopia dichromacy monochromacy deuteranopia
Similar spelling:   achromatic_lens
  achromatic_color
  achromatic_colour