brown rat

noun

Norway rat.

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a granular metamorphic rock.
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Origin of brown rat

First recorded in 1820–30

Words nearby brown rat

brown mustard, brown nose, brown owl, brown paper, brown patch, brown rat, brown recluse spider, brown rice, brown rot, brown sauce, brown seaweed
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for brown rat

brown rat

noun

a common brownish rat, Rattus norvegicus : a serious pest in all parts of the worldAlso called: Norway rat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012