From Longman Dictionary of Contemporary Englishcrossbreedcross‧breed1 /ˈkrɒsbriːd $ ˈkrɒːs-/ verb (past tense and past participle crossbred /-bred/) [intransitive, transitive] if one breed of plant or animal crossbreeds with another, or if you crossbreed them, they breed, producing a new type of plant or animal —crossbred /-bred/ adjective→ See Verb tablecrossbreedcrossbreed2 noun [countable] HBan animal or plant that is a mixture of breeds → hybrid
Examples from the Corpus
crossbreed• The best crossbreed was Max, belonging to Beryl Greenslade of Hindhead, who also took the best mover award. 