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[in-uh nd-in, -uh n-] /ˈɪn əndˈɪn, -ən-/
repeatedly within the same family, strain, etc.:
to breed stock in-and-in.
Origin of in-and-in
1620-30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for in-and-in
Historical Examples
  • The more well-bred the animals, the greater are the injurious effects of in-and-in breeding.

  • Unceasingly did the drama practice the in-and-in breeding of sexual problems.

    Romain Rolland Stefan Zweig
  • in-and-in, a term applied to the breeding of animals from the same parentage.

    The Nuttall Encyclopaedia Edited by Rev. James Wood
  • Few domesticated animals suffer so much from in-and-in breeding as swine.

    Sheep, Swine, and Poultry Robert Jennings
  • The red deer of the North Island represent the greatest case of in-and-in breeding of wild animals on record.

    Our Vanishing Wild Life William T. Hornaday
  • Many, perhaps, will see an additional cause in teleological considerations, aiming at the avoidance of in-and-in breeding.

  • Breeds of animals deteriorate rapidly through lack of nourishment and from in-and-in breeding.

    Riding and Driving Edward L. Anderson
  • In fact, this in-and-in breeding seems one of the curses of village life, and a cause of stagnation and narrowness of mind.

    Field and Hedgerow Richard Jefferies
British Dictionary definitions for in-and-in


(of breeding) carried out repeatedly among closely related individuals of the same species to eliminate or intensify certain characteristics
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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