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methadone Line breaks: metha|done
Pronunciation: /ˈmɛθədəʊn/

Definition of methadone in English:


[mass noun]
A powerful synthetic analgesic drug which is similar to morphine in its effects but less sedative and is used as a substitute drug in the treatment of morphine and heroin addiction.
Example sentences
  • I am pumped full of drugs: methadone, morphine, opium, marijuana, the whole lot.
  • The alternative treatment for heroin addiction is the drug methadone which is taken in tablet form.
  • Only this week I have had ketamine and methadone, both controlled drugs that merit an article themselves.


1940s: from its chemical name, (6-di)meth(yl)a(mino-4,4-)d(iphenyl-3-heptan)one.

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