Norway rat

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. See illus. under rat.
Also called brown rat.


Origin:
1745–55

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World English Dictionary
Norway rat
 
n
another name for brown rat

Collins English Dictionary - Complete & Unabridged 10th Edition
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