Definition of "crossbreed"

crossbreed

/ˈkɹɑːsˌbɹiːd/

verb
third-person singular simple present crossbreeds, present participle crossbreeding, simple past and past participle crossbred
1. (transitive) To produce (an organism) by the mating of individuals of different breeds, varieties, or species; hybridize.
  Quotations
  Recalling the crossbreeding of the lakeside daisy, he insists, "If we hadn't polluted that population with Ohio plants it might have vanished.
  1988 April 15, James Krohe Jr., “Where Has All the Flora Gone?”, in Chicago Reader‎
2. (intransitive) To mate so as to produce a hybrid; interbreed.
3. (transitive) To mate (an organism) with another organism so as to produce a hybrid.
noun
plural crossbreeds
1. An organism produced by mating of individuals of different varieties or breeds.
  Quotations
  When I ask about these dogs, they are described to me as the local mutts, mongrels, pavement specials, crossbreeds.
  2001, Raymond Coppinger, Lorna Coppinger, Dogs, page 69