• synonyms


noun Pathology.
  1. a transient condition of the skin, usually caused by an allergic reaction, characterized by pale or reddened irregular, elevated patches and severe itching; hives.
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Origin of urticaria

1765–75; < New Latin, equivalent to Latin urtīc(a) nettle + -āria, feminine of -ārius -ary
Related formsur·ti·car·i·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for urticaria


  1. a skin condition characterized by the formation of itchy red or whitish raised patches, usually caused by an allergyNontechnical names: hives, nettle rash
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Derived Formsurticarial or urticarious, adjective

Word Origin

C18: from New Latin, from Latin urtīca nettle
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 urticaria


medical Latin, from Latin urtica "nettle," from urere "to burn." The native name is nettle-rash.

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Online Etymology Dictionary, © 2010 Douglas Harper

urticaria in Medicine


  1. A skin condition characterized by welts that itch intensely, caused by an allergic reaction, an infection, or a nervous condition.hives nettle rash
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

urticaria in Science


  1. See hives.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.