xenograft

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WordNet Dictionary
	Definition:		[n]  tissue from an animal of one species used as a temporary graft (as in cases of severe burns) on an individual of another species
	Synonyms:		heterograft
	See Also:		graft, transplant
Medical Dictionary
	Definition:		The cells of one species transplanted to another species.
Biology Dictionary
	Definition:		Surgically grafting tissue from one species onto an organism of a different species. See also xenotransplantation.
	Synonyms:		heteroplastic graft
Glossary
	Definition:		Tissue or organs from an individual of one species transplanted into or grafted onto an organism of another species, genus, or family. A common example is the use of pig heart valves in humans.