Pathology. a sore on the skin or a mucous membrane, accompanied by the disintegration of tissue, the formation of pus, etc.
any chronically corrupting or disrupting condition, element, etc.
Origin of ulcer
1350–1400; Middle English < Latin ulcer- (stem of ulcus); akin to Greek hélkos
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin for ulcer
C14: from Latin ulcus; related to Greek helkos a sore
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
c.1400, from Old French ulcere, from Vulgar Latin ulcerem, from Latin ulcus (genitive ulceris) "ulcer," from PIE *elk-es- "wound" (cf. Greek elkos).
Online Etymology Dictionary, © 2010 Douglas Harper
A lesion of the skin or of a mucous membrane, such as the one lining the stomach or duodenum, that is accompanied by formation of pus and necrosis of surrounding tissue, usually resulting from inflammation or ischemia.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A break in the skin or a mucous membrane, such as the one lining the stomach or duodenum, accompanied by inflammation, pus, and loss of tissue.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.