the dried, condensed juice of a poppy, Papaver somniferum, that has a narcotic, soporific, analgesic, and astringent effect and contains morphine, codeine, papaverine, and other alkaloids used in medicine in their isolated or derived forms

a narcotic substance, poisonous in large doses.

anything that causes dullness or inaction or that soothes the mind or emotions.

noun

brown stuff , codeine , dope , drug , heroin , hypnotic , morphine , opiate , papaverine , poppy , sleep-inducer , soporific , tar , intoxicant , laudanum