Definition of Norway rat in English:

Norway rat

Line breaks: Nor¦way rat

noun

another term for brown rat.
More example sentences
  • Today, Norway rats (aka brown rats) can be found on every continent of the world except Antarctica.
  • Invasive rodents, such as the Norway rat, are known to cause major disruptions to isolated ecosystems.
  • Such a rapid expansion of range is unprecedented for a native vertebrate (though invaders from Europe, such as the house sparrow and the Norway rat, have managed similar feats).

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