xenotransplantationnoun [ U ]
uk/ˌzen.əʊ.træn.splaːnˈteɪ.ʃən//ˌzen.oʊ.træn.splænˈteɪ.ʃən/specializedthe process of transplanting an organ or another part of the body from one species (= set of animals with similar characteristics) to a different species:
In the absence of sufficient human donors, research into xenotransplantation is seen as increasingly important.