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methadone
methadone definition
metha·done (met̸h′ə dōn′)
noun
a synthetic narcotic drug, CHNO, used in medicine to treat heroin and morphine addicts: it is more potent than morphine, with a longer duration of action and milder withdrawal symptoms
Etymology: < (6 di)meth(yl)a(mino-4,4-)d(iphenyl-3-heptan)one
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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