What is the meaning of Amphetamine?

The racemic freebase of 1-phenylpropan-2-amine; an equal parts mixture of levoamphetamine and dextroamphetamine in their pure amine forms.

Any mixture of the two amphetamine enantiomers, dextroamphetamine and levoamphetamine.

Referring to a substituted amphetamine; a member of the amphetamine class of chemicals.

A potent central nervous system stimulant of the phenethylamine chemical class that is used to treat ADHD, narcolepsy, and obesity.

Source: wiktionary.org