vermin (n.)

  1. an irritating or obnoxious person

    [ Syn: varmint ]

  2. any of various small animals or insects that are pests; e.g. cockroaches or rats; cereals must be protected from mice and other vermin; he examined the child's head for vermin; boys in the village have probably been shooting vermin'

The dictionary is based on the WordNet Electronic Lexical Database.
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