Xenograft definition

A tissue graft between members of different species, such as between a pig and a human. (Alcamo’s Fundamentals of Microbiology)

The transfer of a tissue or an organ from an animal of one species to a recipient of another species. (Foundation in Microbiology by Talaro and Chess)

A tissue graft from another species. (Microbiology: An Introduction by Tortora, Funke, and Case)

A tissue graft between animals of different species. (Prescott’s Microbiology)