Canker Can"ker (k[a^][ng]"k[~e]r), n. [OE. canker, cancre, AS. cancer (akin to D. kanker, OHG chanchar.), fr. L. cancer a cancer; or if a native word, cf. Gr. ? excrescence on tree, ? gangrene. Cf. also OF. cancre, F. chancere, fr. L. cancer. See {cancer}, and cf. {Chancre}.] [1913 Webster] 1. A corroding or sloughing ulcer; esp. a spreading gangrenous ulcer or collection of ulcers in or about the mouth; -- called also {water canker}, {canker of the mouth}, and {noma}. [1913 Webster]

2. Anything which corrodes, corrupts, or destroy. [1913 Webster]

The cankers of envy and faction. --Temple. [1913 Webster]

3. (Hort.) A disease incident to trees, causing the bark to rot and fall off. [1913 Webster]

4. (Far.) An obstinate and often incurable disease of a horse's foot, characterized by separation of the horny portion and the development of fungoid growths; -- usually resulting from neglected thrush. [1913 Webster]

5. A kind of wild, worthless rose; the dog-rose. [1913 Webster]

To put down Richard, that sweet lovely rose. And plant this thorm, this canker, Bolingbroke. --Shak. [1913 Webster]

{Black canker}. See under {Black}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • canker — ► NOUN 1) a destructive fungal disease of trees that results in damage to the bark. 2) an open lesion in plant tissue caused by infection or injury. 3) fungal rot in parsnips, tomatoes, or other vegetables. 4) an ulcerous condition in animals,… …   English terms dictionary

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  • canker — /kang keuhr/, n. 1. a gangrenous or ulcerous sore, esp. in the mouth. 2. a disease affecting horses feet, usually the soles, characterized by a foul smelling exudate. 3. a defined area of diseased tissue, esp. in woody stems. 4. something that… …   Universalium

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