Opium (poppy tears, lachryma papaveris) is the dried latex obtained from the opium poppy. Opium contains up to 12% morphine, an alkaloid, which is most frequently processed chemically to produce heroin for the illegal drug trade. The latex also includes codeine and non-narcotic alkaloids such as papaverine, thebaine and noscapine.
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opium A yellow-brown, addictive narcotic drug obtained from the dried juice of unripe pods of the opium poppy.