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Từ điển Oxford Advanced Learner 8th
amphetamine
am·phet·amine [amphetamine amphetamines] BrE [æmˈfetəmiːn] NAmE [æmˈfetəmiːn] noun countable, uncountable
a drug that makes you feel excited and full of energy. Amphetamines are sometimes taken illegally.
Word Origin:
1930s: abbreviation of its chemical name, a(lpha-)m(ethyl) phe(ne)t(hyl)amine.
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