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Canker

ˈkaŋkə

Canker definitions
noun
canker cankers
  1. a destructive fungal disease of apple and other trees that results in damage to the bark

    "cut out lesions on branches caused by canker"

    fungal disease fungal rot plant rot
    • an open lesion in plant tissue caused by infection or injury

      "check trees for cankers"

    • fungal rot in some fruits and vegetables, e.g. parsnips and tomatoes

      "canker is this crop's arch enemy"

  2. an ulcerous condition or disease of a human or animal
    • a small ulcer of the mouth or lips

      "a remedy for canker sores"

    • ulceration of the throat and other orifices of birds, typically caused by a protozoal infection

      "secondary infections of canker and coccidiosis"

    • inflammation of the ear of a dog, cat, or rabbit, typically caused by a mite infestation
  3. a malign and corrupting influence that is difficult to eradicate

    "racism remains a canker at the heart of the nation"

verb
canker cankered cankering cankers
  1. (of a plant or part of a plant) become infected with canker

    "the tree is apt to canker in poor soils"