Rattus norvegicus

Definitions of Rattus norvegicus
  1. noun
    common domestic rat; serious pest worldwide
    synonyms: Norway rat, brown rat
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    types:
    wharf rat
    brown rat that infests wharves
    sewer rat
    brown rat commonly found in sewers
    type of:
    rat
    any of various long-tailed rodents similar to but larger than a mouse
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