psychoactive
adjective
psy·cho·ac·tive
ˌsī-kō-ˈak-tiv 
: affecting the mind or behavior
psychoactive drugs
Examples of psychoactive in a Sentence
Recent Examples on the Web
The prescription drugs Vicodin, Dilaudid, Xanax, Ambien were found in his system after that arrest, as was THC, the psychoactive chemical in marijuana.
—
Dan Mangan, CNBC, 31 Mar. 2026
The structures were built to grow industrial hemp, a fast-growing plant similar to cannabis but with a negligible level of the psychoactive compound THC.
—Phil Diehl, San Diego Union-Tribune, 30 Mar. 2026
This is because the two major ingredients, mitragynine and 7-hydroxymitragynine, have major psychoactive effects.
—Josh Kelly, Oklahoman, 26 Mar. 2026
The finding could shed light on how the psychoactive substance affects the animals’ behavior.
—K. R. Callaway, Scientific American, 25 Feb. 2026
See All Example Sentences for psychoactive
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Dan Mangan, CNBC, 31 Mar. 2026
The structures were built to grow industrial hemp, a fast-growing plant similar to cannabis but with a negligible level of the psychoactive compound THC.
—Phil Diehl, San Diego Union-Tribune, 30 Mar. 2026
This is because the two major ingredients, mitragynine and 7-hydroxymitragynine, have major psychoactive effects.
—Josh Kelly, Oklahoman, 26 Mar. 2026
The finding could shed light on how the psychoactive substance affects the animals’ behavior.
—K. R. Callaway, Scientific American, 25 Feb. 2026
See All Example Sentences for psychoactive
Cite this Entry
“Psychoactive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psychoactive. Accessed 5 Apr. 2026.
Copy CitationKids Definition
psychoactive
adjective
psy·cho·ac·tive
ˌsī-kō-ˈak-tiv
: affecting the mind or behavior
psychoactive drugs
Medical Definition
psychoactive
adjective
psy·cho·ac·tive
ˌsī-kō-ˈak-tiv
: affecting the mind or behavior
psychoactive drugs
THC is the principal psychoactive ingredient in marijuana
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