Meaning of morphine

mor•phine

Pronunciation: (môr'fēn), [key]
— n. Pharm.
  1. a white, bitter, crystalline alkaloid, CHNO&multiplydot;HO, the most important narcotic and addictive principle of opium, obtained by extraction and crystallization and used chiefly in medicine as a pain reliever and sedative.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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