Canker sore: Definition with Canker sore Pictures and Photos

1. Noun. An ulceration (especially of the lips or lining of the mouth).

Exact synonyms: Canker
Generic synonyms: Ulcer, Ulceration
Derivative terms: Canker, Canker, Cankerous

1. Noun. An ulcer in the mouth, called an aphthous ulcer, caused by a break in the mucous membrane. ¹

¹ Source: wiktionary.com

1. A type of benign mouth ulcer often caused by injury to the mucosal lining of the oral cavity, viral infection or vitamin deficiency. (27 Sep 1997)

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