dichromatism
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dichromatism
[di-kro´mah-tizm]1. the quality of existing in or exhibiting two different colors.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
di·chro·ma·tism
(dī-krō'mă-tizm),1. The state of being dichromatic (1).
2. The abnormality of color vision in which only two of the three retinal cone pigments are present, as in protanopia, deuteranopia, and tritanopia. Synonym(s): dichromatopsia
[G. di-, two, + chrōma, color]
Farlex Partner Medical Dictionary © Farlex 2012
dichromatism
(dī-krō′mə-tĭz′əm) alsodichromism
(-mĭz′əm)n.
1. The quality or condition of having or exhibiting two colors.
2. A form of colorblindness in which only two of the three fundamental colors can be distinguished due to a lack of one of the cone pigments.
di′cro·mat′ic (-măt′ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
di·chro·ma·tism
(dī-krō'mă-tizm)1. The state of being dichromatic (1).
2. The abnormality of color vision in which only two of the three retinal cone pigments are present, as in protanopia, deuteranopia, and tritanopia.
Synonym(s): dichromatopsia.
Synonym(s): dichromatopsia.
[G. di-, two, + chrōma, color]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
dichromatism
Partial color blindness in which only two of the primary colours can be perceived.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
dichromatism
A form of colour vision deficiency in which all colours can be matched by a mixture of only two primary colours. The spectrum appears as consisting of two colours separated by an achromatic area (the neutral point). There are several types of dichromatism: deuteranopia, protanopia and tritanopia. Syn. daltonism; dichromatopsia; dichromatic vision. See defective colour vision; visual pigment.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann