11 letters · 18 points in Scrabble
noun tissue from an animal of one species used as a temporary graft (as in cases of severe burns) on an individual of another species
originEtymology tree Proto-Indo-European *sem- Proto-Indo-European *sḿ̥teros Proto-Hellenic *hə́teros Ancient Greek ἕτερος (héteros)lbor. English hetero- English graft English heterograft From hetero- + graft.
Etymology from Wiktionary, CC BY-SA 3.0