[ doo-ter-uh-noh-pee-uh, dyoo- ]
/ ˌdu tər əˈnoʊ pi ə, ˌdyu- /

noun Ophthalmology.

a defect of vision in which the retina fails to respond to the color green.

Origin of deuteranopia

From New Latin, dating back to 1900–05; see origin at deuter-, anopia

Related forms

deu·ter·an·op·ic [doo-ter-uh-nop-ik, dyoo-] /ˌdu tər əˈnɒp ɪk, ˌdyu-/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for deuteranopia


/ (ˌdjuːtərəˈnəʊpɪə) /


a form of colour blindness in which there is a tendency to confuse blues and greens, and greens and reds, and in which sensitivity to green is reduced

Derived Forms

deuteranopic (ˌdjuːtərəˈnɒpɪk), adjective

Word Origin for deuteranopia

C20: New Latin, from deutero- (referring to the theory in which green is the second primary colour) + an- + Greek -ops eye
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

Medicine definitions for deuteranopia


[ dōō′tər-ə-nōpē-ə ]


A form of colorblindness characterized by insensitivity to green.

Related forms

deu′ter•a•nopic (-nŏpĭk, -nōpĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.