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Ulcer - Dictionary Definition and Overview |
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Ulcer : (noun)
1: a circumscribed inflammatory and often suppurating lesion on
the skin or an internal mucous surface resulting in
necrosis of tissue [syn: ulceration]
Based on WordNet 2.0
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Weak conjugation (Gram.), the conjugation of weak verbs; --
called also new, or regular, conjugation, and
distinguished from the old, or irregular, conjugation.
Weak declension (Anglo-Saxon Gram.), the declension of weak
nouns; also, one of the declensions of adjectives.
Weak side, the side or aspect of a person's character or
disposition by which he is most easily affected or
influenced; weakness; infirmity.
Weak sore or ulcer (Med.), a sore covered with pale,
flabby, sluggish granulations.
Based on Webster's Revised Unabridged Dictionary
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Ulcer : \Ul"cer\, n. [F. ulc[`e]re, L. ulcus, gen. ulceris, akin
to Gr. ?.]
1. (Med.) A solution of continuity in any of the soft parts
of the body, discharging purulent matter, found on a
surface, especially one of the natural surfaces of the
body, and originating generally in a constitutional
disorder; a sore discharging pus. It is distinguished from
an abscess, which has its beginning, at least, in the
depth of the tissues.
2. Fig.: Anything that festers and corrupts like an open
sore; a vice in character.
Cold ulcer (Med.), an ulcer on a finger or toe, due to
deficient circulation and nutrition. In such cases the
extremities are cold.
Based on Webster's Revised Unabridged Dictionary
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Ulcer : \Ul"cer\, v. t.
To ulcerate. [R.] --Fuller.
Based on Webster's Revised Unabridged Dictionary
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Ulcer : Ulcer: An area of tissue erosion, for example, of the skin or lining of the gastrointestinal (GI) tract. Due to the erosion, an ulcer is concave. It is always depressed below the level of the
surrounding tissue.
Ulcers can have diverse causes. Ulcers on the skin are often due to irritation, as with bedsores, and they may become infected and inflamed as they grow.
Ulcers in the GI tract were once attributed to stress but most are now believed to be due to infection with the bacteria H. pyloridus . GI ulcers, however, may be made worse by stress, smoking
and other noninfectious factors.
The word "ulcer" traveled across the English Channel from the French "ulcere" which, in turn, came from the Latin "ulcus, ulceris" meaning "sore, sore spot, painful spot, or ulcer."
Based on Webster's Revised Unabridged Dictionary (1913)
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