1. A compound that acts on the human body like morphine, often used for pain relief

Derived forms: opioids

Encyclopedia: Opioid

• elevated railroad
• elevated railway
• elevation
• elevator
• elevator boy
• elevator car
• elevator girl
• elevator man
• elevator operator
• elevator pitch
• elevator shaft
• eleven
• eleven-plus
• eleven-sided
• elevenses
• eleventh
• eleventh cranial nerve
• eleventh hour
• elf
• elf cup
• elfin
• elfish
• elflike
• Elgar
• Elgin Marbles