a potentially habit-forming drug used as a central-nervous-system stimulant and appetite depressant
See dextroamphetamine in American Heritage Dictionary 4
(dĕkˌstrō-ăm-fĕtˈə-mēnˌ, -mĭn)
noun
A white crystalline compound, C9H13N, that is the dextrorotatory isomer of amphetamine and is used in the form of its phosphate or sulfate salt as a central nervous system stimulant, both medically and illicitly.