pethidine From WikiWord, the free dictionary /ˈpɛθɪdiːn/ English Contents DefinitionsRelated wordsReferences DefinitionsnounA fast-acting opioid analgesic drug used in the treatment of severe pain. Related wordsSynonymsUSANmeperidineisonipecainelidoloperidinepethanolpiridosalhydrochloridemgdemerolhydroxypethidinemorpheridineproperidinenorpethidinepentazocinedimepheptanoloxpheneridine References Wiktionary — pethidine Wikipedia — pethidine