from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An opioid antagonist from the morphinan family.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. drug (trade name Lorfan) that is related to morphine but that counteracts the respiratory depression produced by morphine poisoning but without affecting its analgesic effects
lev- + allorphan (Wiktionary)