ulcer (ˈʌlsə) ![]() | |
| —n | |
| 1. | See also peptic ulcer a disintegration of the surface of the skin or a mucous membrane resulting in an open sore that heals very slowly |
| 2. | a source or element of corruption or evil |
| [C14: from Latin ulcus; related to Greek helkos a sore] | |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
ulcer ul·cer (ŭl'sər)
n.
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.
| ulcer (ŭl'sər) Pronunciation Key
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. |
An inflamed open sore on the skin or mucous membrane. An ulcer may form in the inner lining of the stomach or duodenum, interfere with digestion, and cause considerable pain.
Note: It used to be thought that stress was the cause of stomach and duodenal ulcers, but we now know that they are caused by bacteria and can be cured by antibiotics.