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1. Oxford American Dictionary

   canker

   • IPA[ˈkaNGkər]

   美式

   • n.
     a destructive fungal disease of apple and other trees that results in damage to the bark；an open lesion in plant tissue caused by infection or injury
   • v.
     (of a plant or part of a plant) become infected with canker

   • noun: canker, plural noun: cankers

2. • 釋義

   n.

   名詞

   • 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 同義詞 fungal disease, fungal rot, plant rot, blight
   • ▪ 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 同義詞 fungal disease, fungal rot, plant rot, blight
   • 2. an ulcerous condition or disease of a human or animal. 同義詞 ulcer, ulceration, infection, sore, running sore, ... 更多lesion, abscess, chancre
   • ▪ North American a small ulcer of the mouth or lips a remedy for canker sores
   • ▪ another term for thrush
   • ▪ 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. 同義詞 ulcer, ulceration, infection, sore, running sore, ... 更多lesion, abscess, chancre
   • 3. a malign and corrupting influence that is difficult to eradicate racism remains a canker at the heart of the nation 同義詞 blight, evil, scourge, poison, cancer, ... 更多sickness, disease, pestilence, plague, rot, corruption

   v.

   動詞

   • 1. (of a plant or part of a plant) become infected with canker the tree is apt to canker in poor soils