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| meth·a·done [ méthə dn ] or meth·a·don [ méthə dòn ] |
noun |
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| Definition: |
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synthetic painkilling drug: a synthetic narcotic drug similar in its painkilling effect to morphine. Use: substitute for heroin in the treatment of addiction.
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| [Mid-20th century. <meth- + amino + di-1] |
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