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white rat

noun
1.
an albino variety of the Norway rat, Rattus norvegicus, used in biological experiments.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for white rat
Historical Examples
  • Pliny says that in his time it was considered fortunate to meet a white rat.

    Demonology and Devil-lore Moncure Daniel Conway
  • Mo-li Shou has two whips and a panther-skin bag, the home of a creature resembling a white rat, known as Hua-hu Tiao.

    Myths and Legends of China E. T. C. Werner
  • He was not even like a white rat that could be secreted under one's bed till its unfortunate odour resulted in painful research.

    Explorers of the Dawn Mazo de la Roche
  • In a cage by the window sat a white rat painted in faint alternate stripes of blue and pink.

    Just William Richmal Crompton
  • I had a white rat, which I had obtained with difficulty through the Underground.

    The Autobiography of a Thief Hutchins Hapgood
  • Tommy was in his night-shirt, with the white rat running over his shoulders.

    Tommy Wideawake H. H. Bashford
  • In his bedroom I could see Tommy, holding the white rat in one hand and kneeling a moment at his very transient prayers.

    Tommy Wideawake H. H. Bashford
  • For instance, if you had a white rat' (the Hermit shuddered) 'and I gave you a brass cannon for it, that would be a swap.'

  • Nell had a white rat curled up in her hair and another nestling in her neck.

  • I shall be obliged to tell all that occurred in the attic when the white rat died.

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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