Noun
common domestic rat; serious pest worldwide
Source: WordNetSince the publication of the rat genome sequence, Gibbs RA et al: Genome sequence of the Brown Norway rat yields insights into mammalian evolution.: Nature. 2004 April 1; 428(6982):475-6. Source: Internet
The University Society, Inc. Volume 1, Chapter 9. pp. 159 Despite this, this species' common name of "Norway rat" is still in use today. Source: Internet
Thank the brown or Norway rat for out-competing and pretty much replacing the black rat that carried plague. Source: Internet