Canker



GRE Barron

解释

GRE 红宝书

• n.溃疡病; 祸害
• ［英］ n.溃疡病 ( any ulcerous sore) ; 祸害 ( any evil)
• ［例］ Drug addiction is a dangerous canker in society.

Webster Collegiate

I. noun

• Etymology: Middle English, from Anglo-French cancre, chancre, from Latin cancer crab, cancer
• Date: before 12th century
• 1.
  • a.
    • (1) an erosive or spreading sore
    • (2) an area of necrosis in a plant; also a plant disease characterized by cankers
  • b. any of various disorders of animals marked by chronic inflammatory changes
• 2. archaic a caterpillar destructive to plants
• 3. chiefly dialect rust 1
• 4. a source of corruption or debasement
• 5. chiefly dialect dog rose
• ? cankerous adjective

II. verb (cankered; cankering)

• Date: 14th century
• transitive verb
  • 1. obsolete to infect with a spreading sore
  • 2. to corrupt the spirit of
• intransitive verb
  • 1. to become infested with canker
  • 2. to become corrupted

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