etorphine

[ ih-tawr-feen, ih-tohr- ]
/ ɪˈtɔr fin, ɪˈtoʊr- /

noun Pharmacology.

a narcotic analgesic, C25H33NO4, used for immobilizing large animals.

Origin of etorphine

1970–75; probably et(henom)orphine a chemical component; see ethene, -o-, morphine