protanopia

noun
prot·​an·​opia | \ˌprōt-ə-ˈnō-pē-ə \

Medical Definition of protanopia 

: a dichromatism in which the spectrum is seen in tones of yellow and blue with confusion of red and green and reduced sensitivity to monochromatic lights from the red end of the spectrum

Learn More about protanopia

Share protanopia

Comments on protanopia

What made you want to look up protanopia? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

playful or foolish behavior

Get Word of the Day daily email!

Test Your Vocabulary

Autumn Words of the Day 2018

  • a-top-down-image-of-road-through-an-autumn-forest
  • Which is a synonym of fugacious?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!