ulcer | | |
n. (state) | 1. ulcer, ulceration | a circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface resulting in necrosis of tissue. |
| ~ lesion | any localized abnormal structural change in a bodily part. |
| ~ aphthous ulcer | a blister on the mucous membranes of the lips or mouth or gastrointestinal tract. |
| ~ bedsore, decubitus ulcer, pressure sore | a chronic ulcer of the skin caused by prolonged pressure on it (as in bedridden patients). |
| ~ chancroid | infectious venereal ulcer. |
| ~ peptic ulcer, peptic ulceration | an ulcer of the mucous membrane lining of the alimentary tract. |
| ~ canker sore, canker | an ulceration (especially of the lips or lining of the mouth). |
| ~ noli-me-tangere | a cancerous ulcer of soft tissue and bone. |
| ~ noma | acute ulceration of the mucous membranes of the mouth or genitals; often seen in undernourished children. |
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