Meaning of dihydromorphinone

di•hy•dro•mor•phi•none

Pronunciation: (dī-hī"drō-môr'fu-nōn"), [key]
— n. Pharm.
  1. a narcotic compound, CHON, prepared from morphine and used chiefly as an analgesic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.