[ verb out-kraws, -kros; noun out-kraws, -kros ]
See synonyms for outcross on Thesaurus.com
verb (used with object)
  1. to cross (animals or plants) by breeding individuals of different strains but, usually, of the same breed.

  2. to produce (a hybrid) by this method.

  1. a hybrid animal or plant so produced.

  2. an act of outcrossing.

Origin of outcross

First recorded in 1885–90; out- + cross

Words Nearby outcross

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for outcross


  1. to breed (animals or plants of the same breed but different strains)

  1. an animal or plant produced as a result of outcrossing

  2. an act of outcrossing

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