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 corrodes, corrupts, destroys, or irritates.
5. Also called canker rose. Brit. Dial. See dog rose.
v.t.
6. to infect with canker.
7. to corrupt; destroy slowly.
v.i.
8. to become infected with or as if with canker.
[bef. 1000; ME; OE cancer < L cancer; see CANCER]
Syn. 4. blight, cancer, scourge.

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      disease of plants that is caused by numerous species of fungi and bacteria. Symptoms include round-to-irregular, sunken, swollen, flattened, or cracked, discoloured, and dead areas on the stem (cane), twig, limb, or trunk. Cankers may enlarge and girdle a twig or branch, killing the foliage beyond it. They are most common on plants weakened by mechanical, winter, or insect injury; drought; nutritional imbalances; nematodes; and root rot.

      Control includes removing diseased parts in dry weather; growing adapted or resistant varieties in warm, well-drained, fertile soil; avoiding overcrowding, overwatering, and mechanical wounds; treating bark and wood injuries promptly; controlling insect and rodent disease carriers; wrapping young trees to prevent sunscald; and keeping plants vigorous by the use of fertilizers.

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Universalium. 2010.

Synonyms:

Look at other dictionaries:

  • Canker — and anthracnose are general terms for a large number of different plant diseases, characterised by broadly similar symptoms including the appearance of small areas of dead tissue, which grow slowly, often over a period of years. Some are of only… …   Wikipedia

  • 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… …   The Collaborative International Dictionary of English

  • Canker — Can ker (k[a^][ng] k[ e]r), v. t. [imp. & p. p. {Cankered} ( k[ e]rd); p. pr. & vb. n. {Cankering}.] 1. To affect as a canker; to eat away; to corrode; to consume. [1913 Webster] No lapse of moons can canker Love. Tennyson. [1913 Webster] 2. To… …   The Collaborative International Dictionary of English

  • Canker — Can ker, v. i. 1. To waste away, grow rusty, or be oxidized, as a mineral. [Obs.] [1913 Webster] Silvering will sully and canker more than gliding. Bacom. [1913 Webster] 2. To be or become diseased, or as if diseased, with canker; to grow… …   The Collaborative International Dictionary of English

  • 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

  • canker — O.E. cancer, from L. cancer (see CANCER (Cf. cancer)); influenced in M.E. by O.N.Fr. cancre (Mod.Fr. chancre). The word was the common one for cancer until c.1700. Canker blossom is recorded from 1580s …   Etymology dictionary

  • canker — [n] blistered infection bane, blight, blister, boil, cancer, corrosion, corruption, lesion, rot, scourge, smutch, sore, ulcer; concept 306 canker [v] blight, corrupt animalize, bestialize, consume, corrode, debase, debauch, demoralize, deprave,… …   New thesaurus

  • 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

  • canker — index decay, degenerate, infect, pervert Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • canker — [[t]kæ̱ŋkə(r)[/t]] cankers 1) N COUNT A canker is something evil that spreads and affects things or people. [FORMAL] As in Europe, the canker of anti Semitism is growing again in America. Syn: cancer 2) N VAR Canker is a disease which affects the …   English dictionary

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