• synonyms


noun Pathology.
  1. abnormal redness of the skin due to local congestion, as in inflammation.
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Origin of erythema

1760–70; < New Latin < Greek, equivalent to eryth(rós) red + -ēma noun suffix
Related formser·y·the·mat·ic [er-uh-thi-mat-ik] /ˌɛr ə θɪˈmæt ɪk/, er·y·them·a·tous [er-uh-them-uh-tuh s, ‐thee-muh‐] /ˌɛr əˈθɛm ə təs, ‐ˈθi mə‐/, er·y·the·mic, er·y·the·mal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for erythematous

Historical Examples

British Dictionary definitions for erythematous


  1. pathol redness of the skin, usually occurring in patches, caused by irritation or injury to the tissue
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Derived Formserythematic (ˌɛrɪθɪˈmætɪk), erythematous (ˌɛrɪˈθiːmətəs) or erythemal, adjective

Word Origin

C18: from New Latin, from Greek eruthēma, from eruthros red
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

Word Origin and History for erythematous



medical Latin, from Greek erithema, from erythainein "to become red," from erythros "red" (see red (1)). Related: Erythematous.

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Online Etymology Dictionary, © 2010 Douglas Harper

erythematous in Medicine


  1. Redness of the skin caused by dilatation and congestion of the capillaries, often a sign of inflammation or infection.
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Related formser′y•thema•tous (-thĕmə-təs, -thēmə-) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.