also methadon noun Etymology: methyl + amino + diphenyl + -one Date: 1947 a synthetic addictive narcotic drug C 21 H 27 NO used especially in the form of its hydrochloride for the relief of pain and as a substitute narcotic in the treatment of heroin addiction
METHADONE
Meaning of METHADONE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012