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norway rat

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Norway rat

–noun
an Old World rat, Rattus norvegicus, having a grayish-brown body with whitish underparts and a long, scaly tail, now common in the U.S. in or near homes, barns, wharves, etc.
Also called brown rat.


Origin:
1745–55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Norway rat  
n.  The common domestic rat (Rattus norvegicus), which is highly destructive and found worldwide, especially in populated areas. Also called brown rat.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: Nor·way rat
Pronunciation: "no(&)r-wA-
Function: noun
: BROWNRAT
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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