Definition of "amphetamine"
amphetamine
/æmˈfɛt.ə.miːn/
noun
countable and uncountable, plural amphetamines
(informal) Any mixture of the two amphetamine enantiomers, dextroamphetamine and levoamphetamine.
(informal, nonstandard) Referring to a substituted amphetamine; a member of the amphetamine class of chemicals.