Xenografts refer to the grafting of tissues or organs from a different species into a human or animal body. The term is commonly associated with medical procedures, specifically in organ transplantation, where material from another species is used as a substitute for a failed organ. Synonyms for the term may include heterografts, allografts, or inter-species transplants. These terms have similar meanings but differ in specific contexts. Heterografts imply the use of tissue from another organism of a different species, while allografts is more commonly used to refer to tissue transferred from the same species. Inter-species transplants is a more general term that encompasses both xenografts and other types of tissue transplantations.