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white rat

American  

noun

  1. an albino variety of the Norway rat, Rattus norvegicus, used in biological experiments.


white rat British  

noun

  1. a white variety of the brown rat ( Rattus norvegicus ), used extensively in scientific research

"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

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.

The light-haired Herzog was named “The White Rat” because of his resemblance to Yankees pitcher Bob “The White Rat” Kuzava.

From Seattle Times

“We have a new view of this phenomenon,” he said, adding that overall the new research shows that despite bottlenose dolphins being referred to as the “white rat” of cetology, there’s still a lot about these marine mammals that scientists don’t know.

From Salon

“America is like a white rat with red eyes.”

From Washington Post

Watson had the infant pet a white rat while hearing this sound, and succeeded in making him afraid of the rat and other objects resembling it: a rabbit, a fur coat, even a Santa Claus beard.

From New York Times

"When I was a youngster, somebody gave me a white rat as a pet," Baker said.

From Fox News