levorphanol: Meaning and Definition of

le•vor•pha•nol

Pronunciation: (lu-vôr'fu-nôl", -nol"), [key]
— n. Pharm.
  1. a potent synthetic narcotic analgesic, CHNO, as the tartrate, used in the treatment of moderate to severe pain.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.