crossbreed (
http://definr.com/crossbreed)
n : an offspring of genetically dissimilar parents or stock;
especially offspring produced by breeding plants or
animals of different varieties or breeds or species [syn:
hybrid]
v : 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:
cross,
hybridize,
interbreed]