monochromatism

[mon-uh-kroh-muh-tiz-uhm]

mon·o·chro·ma·tism

[mon-uh-kroh-muh-tiz-uhm]
noun
1.
a monochromatic quality: the monochromatism of Southern Sung art.
2.
Ophthalmology. a defect of vision in which the retina fails to perceive color. Compare dichromatism (def. 2), trichromatism (def. 3).
Also, mon·o·chro·ma·sia [mon-uh-kroh-mey-zhuh, ‐zee-uh, ‐shuh, ‐shee-uh] .


Origin:
1860–65; mono- + chromatism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Monochromatism has a plethora of syllables.
So is pneumonoultramicroscopicsilicovolcanoconiosis. Does it mean:
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.
Collins
World English Dictionary
monochromatism (ˌmɒnəʊˈkrəʊməˌtɪzəm)
 
n
a visual defect in which all colours appear as variations of a single hue

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

monochromatism mon·o·chro·ma·tism (mŏn'ə-krō'mə-tĭz'əm)
n.

  1. The state of having or exhibiting only one color.

  2. See achromatopsia.

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