Definition of methadone in English:


Line breaks: metha|done
Pronunciation: /ˈmɛθədəʊn


[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.
    More 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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Word of the day skosh
Pronunciation: skəʊʃ
a small amount; a little