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(k"kr), 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.] 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. 2. Anything which corrodes, corrupts, or destroy. The cankers of envy and faction. Temple. 3. (Hort.) A disease incident to trees, causing the bark to rot and fall off. 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. 5. A kind of wild, worthless rose; the dog-rose. To put down Richard, that sweet lovely rose. And plant this thorm, this canker, Bolingbroke. Shak. Black canker. See under Black. Can"ker (k"kr), v. t.[imp. & p. p.Cankered (-krd); p. pr. & vb. n.Cankering.] 1. To affect as a canker; to eat away; to corrode; to consume. No lapse of moons can canker Love. Tennyson. 2. To infect or pollute; to corrupt. Addison. A tithe purloined cankers the whole estate. Herbert. Can"ker v. i. 1. To waste away, grow rusty, or be oxidized, as a mineral. [Obs.] Silvering will sully and canker more than gliding. Bacon. 2. To be or become diseased, or as if diseased, with canker; to grow corrupt; to become venomous. Deceit and cankered malice. Dryden. As with age his body uglier grows, So his mind cankers. Shak. スポンサード リンク
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