'Interbreed' definitions:

Definition of 'interbreed'

From: WordNet
verb
Breed animals or plants using parents of different races and varieties; "cross a horse and a donkey"; "Mendel tried crossbreeding"; "these species do not interbreed" [syn: crossbreed, cross, hybridize, hybridise, interbreed]

Definition of 'Interbreed'

From: GCIDE
  • Interbreed \In`ter*breed"\, v. t. & i. To breed by crossing different stocks of animals or plants. [1913 Webster]