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A form of colorblindness characterized by defective perception of red and confusion of red with green or bluish green.
[prot(o)- + an- + -opia (from the blindness to red, which is considered the first of the primary colors).]
pro′ta·nop′ic (-nŏp′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Pathology) a form of colour blindness characterized by a tendency to confuse reds and greens and by a loss of sensitivity to red light
[C20: New Latin, from proto- + an- + -opia]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a defect of the eyesight in which the retina does not respond to red. — protanope, n. — protanopic, adj.See also: Color, Eyes
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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|Noun||1.||protanopia - dichromacy characterized by lowered sensitivity to long wavelengths of light resulting in an inability to distinguish red and purplish blue|
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