from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A form of colorblindness characterized by insensitivity to green.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A form of color blindness. Involves a defect in distinguishing between red and green.
from The Century Dictionary and Cyclopedia
- n. In psychophysics, a form of red-green colorblindness; the so-called green-blindness.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red
The regular color blindness tests (Ishikawa plates) test primarily for red-green (protanopia and deuteranopia), and not for tritanopia.
I dunno .. if you look at the protanopia and deuteranopia pics on the wiki page for