Dictionary.com
Thesaurus.com

brown rat

American  

noun

  1. Norway rat.


brown rat British  

noun

  1. Also called: Norway rat.  a common brownish rat, Rattus norvegicus : a serious pest in all parts of the world

"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

Etymology

Origin of brown rat

First recorded in 1820–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

But has the city’s vilest enemy, better known as the common brown rat, finally met its match?

From Washington Times Apr. 12, 2023

Hiding inside ships, the brown rat made its way to Europe in the 1500s and then to the Western hemisphere, Africa and Australia as colonizers arrived.

From Washington Post Dec. 2, 2022

"But it was our little brown rat and it was our responsibility to make sure it persisted. And we failed."

From BBC Feb. 19, 2019

Though the black rat was old news in Europe, the Norway, or brown, rat arrived on the continent in the early 17th century.

From New York Times Jan. 31, 2017

Out of nowhere, a scrawny brown rat materialized on the side bench, nervous and breathless.

From "Life of Pi" by Yann Martel

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training