protanopia

[ proht-n-oh-pee-uh ]

noun

, Ophthalmology.

1. a defect of vision in which the retina fails to respond to red or green.

protanopia

/ ˌprəʊtəˈnɒpɪk; ˌprəʊtəˈnəʊpɪə /

noun

1. a form of colour blindness characterized by a tendency to confuse reds and greens and by a loss of sensitivity to red light

Derived Forms

• protanopic, adjective

Other Words From

• pro·ta·nop·ic [proht-n-, op, -ik], adjective

Word History and Origins

Origin of protanopia¹

From New Latin, dating back to 1900–05; prot-, an- ¹, -opia

Word History and Origins

Origin of protanopia¹

C20: New Latin, from proto- + an- + -opia