Ulcer meaning

ŭl'sər
The definition of an ulcer is an open sore on the surface of the skin or inside the body in a mucous membrane.

An example of an ulcer is a sore in the stomach lining caused by a bacterial infection.

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A lesion of the skin or 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.
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An open sore (other than a wound) on the skin or some mucous membrane, as the lining of the stomach (peptic ulcer), characterized by the disintegration of the tissue and, often, the discharge of pus.
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Any corrupting or festering condition or influence.
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A lesion of the skin or 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.
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A corrupting condition or influence.
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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.
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(pathology) An open sore of the skin, eyes or mucous membrane, often caused by an initial abrasion and generally maintained by an inflammation and/or an infection.
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(pathology) Peptic ulcer.
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A corrupting condition or influence.
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Origin of ulcer

  • Middle English from Old French ulcere from Latin ulcus ulcer-
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Wiktionary