morfiinist sünteesitud poolsünteetiline opiaat, mis tekitab tugevat eufooriat ning kehalist ja vaimset sõltuvust; varem kasutati valuvaigistava ravimina, valuvaigistav ja köhaärritust pärssiv pool­sünteetiline morfiiniderivaat, mida on kasutatud ka narkootiku­mina, crude preparation of diamorphine (a derivative of morphine, which occurs as a natural product in opium), used illicitly as a powerful and addictive drug producing intense euphoric sensations, a strongly physiologically addictive narcotic C21H23NO5 that is made by acetylation of but is more potent than morphine and that is prohibited for medical use in the U.S. but is used illicitly for its