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daltonian

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Dal⋅to⋅ni⋅an

[dawl-toh-nee-uhn]
–adjective
1. of John Dalton or his atomic theory.
2. of or pertaining to daltonism.

Origin:
1805–15; J. Dalton + -ian
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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