| 单词 | canker |
| 释义 | canker n. & v. --n 1. a a destructive fungus disease of trees and plants. b an open wound in the stem of a tree or plant. 2. Zool. an ulcerous ear disease of animals esp. cats and dogs. 3. Med. an ulceration esp. of the lips. 4. a corrupting influence. --vtr. 1. consume with canker. 2. corrupt. 3. (as cankered adj.) soured, malignant, crabbed. Phrases and idioms canker-worm any caterpillar of various wingless moths which consume the buds and leaves of shade and fruit trees in N. America. Derivatives cankerous adj. Etymology: OE cancer & ONF cancre, OF chancre f. L cancer crab |
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