amphetamine
Concise Oxford English Dictionary © 2008 Oxford University Press:
amphetamine /amˈfɛtəmiːn, -ɪn/
▶noun a synthetic mood-altering drug, used illegally as a stimulant.
– origin 1930s: abbrev. of its chemical name, a(lpha-)m(ethyl) phe(ne)t(hyl)amine.
'amphetamine' also found in these Oxford entries:

