Try Our Apps
Dictionary.com

follow Dictionary.com

Words You've Been Using Wrong

protanopia

[proht-n-oh-pee-uh] /ˌproʊt nˈoʊ pi ə/
noun, Ophthalmology.
1.
a defect of vision in which the retina fails to respond to red or green.
Origin of protanopia
1900-1905
From New Latin, dating back to 1900-05; See origin at prot-, an-1, -opia
Related forms
protanopic
[proht-n-op-ik] /ˌproʊt nˈɒp ɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
British Dictionary definitions for protanopia

protanopia

/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 (ˌprəʊtəˈnɒpɪk) adjective
Word Origin
C20: New Latin, from proto- + an- + -opia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
protanopia in Medicine

protanopia pro·ta·no·pi·a (prō'tə-nō'pē-ə)
n.
A form of colorblindness characterized by defective perception of red and confusion of red with green or bluish green.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Nearby words for protanopia

Word Value for protanopia

0
0
Scrabble Words With Friends