Dictionary

psychoactive

adjective psy·cho·ac·tive \ˌsī-kō-ˈak-tiv\

Definition of PSYCHOACTIVE

:  affecting the mind or behavior <psychoactive drugs>
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First Known Use of PSYCHOACTIVE

1961
Medical Dictionary

psychoactive

adjective psy·cho·ac·tive \ˌsī-kō-ˈak-tiv\

Medical Definition of PSYCHOACTIVE

:  affecting the mind or behavior <psychoactive drugs> <THC is the principal psychoactive ingredient in marijuana>

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