Open English Wordnet
Nouns
(n)hybrid, crossbreed, cross(genetics) an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species“a mule is a cross between a horse and a donkey”
Verbs
(v)crossbreed, cross, hybridize, hybridise, interbreedbreed animals or plants using parents of different races and varieties“cross a horse and a donkey”, “Mendel tried crossbreeding”, “these species do not interbreed”