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erythrism

[ih-rith-riz-uh m, er-uh-thriz-uh m]
noun
  1. abnormal redness, as of plumage or hair.
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Origin of erythrism

First recorded in 1885–90; erythr- + -ism
Related formser·y·thris·mal [er-uh-thriz-muh l] /ˌɛr əˈθrɪz məl/, er·y·thris·tic [er-uh-thris-tik] /ˌɛr əˈθrɪs tɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for erythrism

erythrism

noun
  1. abnormal red coloration, as in plumage or hair
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Derived Formserythrismal (ˌɛrɪˈθrɪzməl), adjective
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
erythrism in Medicine

erythrism

(ĕr′ə-thrĭz′əm)
n.
  1. Redness of the hair with a ruddy freckled complexion.
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Related formser′y•thris′tic (-thrĭs′tĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.