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Meaning of canker

can•ker

Pronunciation: (kang'kur), [key]
— 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 calledSee
—v.t.
  1. to infect with canker.
  2. to corrupt; destroy slowly.
—v.i.
  1. to become infected with or as if with canker.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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