(v) breed animals or plants using parents of different races and varieties, Syn. interbreed, cross, hybridise, hybridize, Example:cross a horse and a donkey; Mendel tried crossbreeding; these species do not interbreed
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
n. 1. A breed or an animal produced from parents of different breeds; a new variety, as of plants, combining the qualities of two parent varieties or stocks. [ 1913 Webster ]
2. Anything partaking of the natures of two different things; a hybrid. [ 1913 Webster ]