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DALTONISM

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dal⋅ton⋅ism

  [dawl-tn-iz-uhm]
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–noun (sometimes initial capital letter) Pathology.
color blindness, esp. the inability to distinguish red from green.
Origin:
1835–45; J. Dalton + -ism

Related forms:
dal⋅ton⋅ic  [dawl-ton-ik] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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dal·ton·ism also Dal·ton·ism   (dôl'tə-nĭz'əm)   
n.  An inherited defect in perception of red and green; red-green colorblindness.

[After John Dalton.]
dal·to'ni·an (-tō'nē-ən), dal·ton'ic (-tŏn'ĭk) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: Dal·ton·ism
Pronunciation: -&n-"iz-&m
Function: noun
: red-green blindness occurring as a recessive sex-linkedgenetic trait; broadly : any form of color blindness
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

daltonism dal·ton·ism (dôl'tə-nĭz'əm)
n.
An inherited defect in the perception of red and green; red-green colorblindness.

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