Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The common domestic rat (Rattus norvegicus), which is found worldwide and is a destructive pest of crops and stored food and a carrier of disease.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A species of rat, Rattus norvegicus, common worldwide.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun common domestic rat; serious pest worldwide

Etymologies

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Examples

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