[ dawl-tn-iz-uhm ]
/ ˈdɔl tnˌɪz əm /
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noun (sometimes initial capital letter)Pathology.
color blindness, especially the inability to distinguish red from green.
QUIZ YOURSELF ON "WAS" VS. "WERE"!
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
OTHER WORDS FROM daltonismdal·ton·ic [dawl-ton-ik], /dɔlˈtɒn ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for daltonism
/ (ˈdɔːltəˌnɪzəm) /
colour blindness, esp the confusion of red and green
Derived forms of daltonismdaltonic (dɔːlˈtɒnɪk), adjective
Word Origin for daltonism
C19: from French daltonisme, after John Dalton
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for daltonism
[ dôl′tə-nĭz′əm ]
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.