amphetamine

 
Pronunciation: /amˈfɛtəmiːn, -ɪn/

noun

[mass noun]
  • a synthetic, addictive, mood-altering drug, used illegally as a stimulant: the amphetamine put him on a high for an hour [count noun]: he was jailed for three months for possessing amphetamines
    • Chemical formula: C6H5CH2CH(CH3)NH2

Origin:

1930s: abbreviation of its chemical name, a(lpha-)m(ethyl) phe(ne)t(hyl)amine