methadon n 1: synthetic narcotic drug similar to morphine but less habit- forming; used in narcotic detoxification and maintenance of heroin addiction [syn: {methadone}, {methadone hydrochloride}, {methadon}, {dolophine hydrochloride}, {fixer}, {synthetic heroin}]
methadon \methadon\, methadone \methadone\n. a narcotic drug similar to morphine but less habit-forming; used in treating heroin addiction. Syn: methadone hydrochloride. [WordNet 1.5]