Canker sore

Canker sore
A small ulcer crater in the lining of the mouth that is often painful and very sensitive. Also known as an aphthous ulcer. Canker sores are one of the most common problems that occur in the mouth. About 20% of the population (1 in 5 people) have canker sores at any given time. Canker sores typically last for 10-14 days and they heal without leaving a scar. The word "canker" comes from the Latin "cancer" for crab. (In Latin "cancer" was once pronounced kanker from which came canker). Chronic ulcers might seem as hard as a crab shell. For a full article, see Canker sores (Aphthous ulcers).

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canker sore n a small painful ulcer esp. of the mouth esp a painful shallow ulceration of the oral mucous membranes that has a grayish-white base surrounded by a reddish inflamed area and is characteristic of aphthous stomatitis compare COLD SORE

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recurrent aphthous stomatitis.

Medical dictionary. 2011.

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Look at other dictionaries:

  • canker sore — canker ,sore noun count AMERICAN a small sore inside the mouth …   Usage of the words and phrases in modern English

  • canker sore — noun an ulceration (especially of the lips or lining of the mouth) • Syn: ↑canker • Derivationally related forms: ↑cankerous (for: ↑canker), ↑canker (for: ↑canker) …   Useful english dictionary

  • canker sore — Pathol. an ulceration of a mucous membrane, esp. of the mouth. [1905 10] * * * ▪ medical disorder also called  aphthous stomatitis,         a small, painful ulcer of the oral cavity. Canker sores are round, shallow, white ulcers on the inner… …   Universalium

  • canker sore — noun Date: circa 1596 a painful shallow ulcer of the mouth that has a grayish white base surrounded by a reddish inflamed area and is of uncertain cause but is not due to the virus causing herpes simplex compare cold sore …   New Collegiate Dictionary

  • canker sore — noun An ulcer in the mouth, called an aphthous ulcer, caused by a break in the mucous membrane …   Wiktionary

  • canker sore — small ulcer located in the mouth …   English contemporary dictionary

  • canker — [kaŋ′kər] n. [ME < OFr cancre < L cancer: see CANCER] 1. an ulcerlike sore, esp. in the mouth: thought to be an immune reaction: cf. COLD SORE: also canker sore 2. a) a disease of plants that causes local decay of bark and wood b) a… …   English World dictionary

  • sore — Synonyms and related words: abrasion, abscess, acerb, acerbate, acerbic, ache, aching, acid, acidic, acidulent, acidulous, acrid, acrimonious, acute, affecting, afflictive, aggrieved, agonizing, ague, algesia, algetic, anemia, angered, angry,… …   Moby Thesaurus

  • canker — Synonyms and related words: abscess, adulterate, alloy, aposteme, bed sore, blain, blast, bleb, blight, blister, boil, break up, bubo, bulla, bunion, cancer, canker sore, carbuncle, chancre, chancroid, cheapen, chilblain, coarsen, cold sore,… …   Moby Thesaurus

  • canker — 1. In cats and dogs, acute inflammation of the external ear and auditory canal. See aphtha. 2. In the horse, a process similar to but more advanced than thrush; the horny frog is generally underrun with a whitish, cheeselike exudate, and the …   Medical dictionary

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