1. tissue from an animal of one species used as a temporary graft (as in cases of severe burns) on an individual of another species; [syn: heterograft, xenograft]
WordNet (r) 3.0 (2006):
xenograft
n 1: tissue from an animal of one species used as a temporary
graft (as in cases of severe burns) on an individual of
another species [syn: heterograft, xenograft]