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Meaning of levorphanol

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.