noun. A colorless, volatile liquid, C₉H₁₃N, used as a central nervous system stimulant in the treatment of certain conditions, such as attention deficit hyperactivity disorder, depression, and narcolepsy, and used illegally as a stimulant.

noun. A derivative of amphetamine, such as dextroamphetamine or a phosphate or sulfate of amphetamine.

noun. 1-phenyl-2-propylamine; a colourless volatile liquid; any of its derivatives.

noun. A class of drugs used as a stimulant of the central nervous system in the treatment of ADHD, depression, and narcolepsy, and abused illegally as a stimulant.

noun. a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression

"The judge said Zakrzewski's long-term amphetamine abuse and lack of insight into his actions made him a danger to the public."