Noun: Daltonism
- Dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red
"People with Daltonism often confuse red and green traffic lights";
- deuteranopia, green-blindness
Type of: red-green color blindness [US], red-green colour blindness [Brit, Cdn], red-green dichromacy
Encyclopedia: Daltonism