AMPHETAMINE Meaning of AMPHETAMINE in English [ am'fɛtəmi:n , -ɪn ]■ noun a synthetic mood-altering drug, used illegally as a stimulant.Origin1930s: abbrev. of its chemical name, a(lpha-)m(ethyl) phe(ne)t(hyl)amine . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004