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white rat

noun
1.
an albino variety of the Norway rat, Rattus norvegicus, used in biological experiments.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for white rat
  • Catching sight of a white rat is considered even more propitious.
British Dictionary definitions for white rat

white rat

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
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white rat in Medicine

white rat n.
A domesticated albino variety of the Norway rat, used extensively in laboratory experiments.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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