brown rat

Definitions of brown rat
  1. noun
    common domestic rat; serious pest worldwide
    synonyms: Norway rat, Rattus norvegicus
    see moresee less
    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
Word Family