psy·​cho·​ac·​tive | \ ˌsī-kō-ˈak-tiv \

Definition of psychoactive

: affecting the mind or behavior psychoactive drugs

Examples of psychoactive in a Sentence

Recent Examples on the Web

The center will examine whether cannabidiol (CBD), the non-psychoactive element of the cannabis plant, is effective at treating severe forms of autism. Kathleen Gray, Detroit Free Press, "Autism, 10 other conditions now qualify patients for medical marijuana," 9 July 2018 Ashley wears a patch and uses lotion containing cannabidiol, or CBD oil, with a small amount of THC, the psychoactive element in cannabis, last December. Robert Mccoppin,, "Illinois lawmakers vote to let kids take medical marijuana in school," 19 May 2018 In Alabama, possession of the psychoactive element of marijuana can result in a misdemeanor for first-time possession or a felony if the person is caught again, or is a courier or drug dealer. Leada Gore,, "Valpak randomly putting $100 checks in some envelopes," 30 Mar. 2018 Technically speaking, hemp is a variety of the cannabis plant that contains less than 0.3 percent tetrahydrocannabinol (THC), the psychoactive ingredient in marijuana. Angela Chen, The Verge, "Growing hemp is about to be legal for the first time in nearly a century," 30 Nov. 2018 Rat offspring exposed to THC — tetrahydrocannabinol, the chief psychoactive ingredient in cannabis — and others that were not had to learn how to press one of two levers to get a sugar pellet reward. Erik Lacitis, The Seattle Times, "‘Something wasn’t clicking’: WSU study shows offspring of pregnant rats exposed to THC have impaired development," 20 Nov. 2018 The major psychoactive component of cannabis is THC (tetrahydrocannabinol), which can cross into the placenta and into breast milk. Carolyn L. Todd, SELF, "Here’s What You Need to Know About Using Marijuana While Pregnant or Breastfeeding," 12 Oct. 2018 Indiana began allowing the medical use of non-psychoactive cannabis extracts in March, but Mr. Chambers is still committing a criminal misdemeanor with his illicit scratch baking. Patrik Jonsson, The Christian Science Monitor, "As war vets enter the fray, stigma lessens around cannabis," 5 July 2018 After all, Epidiolex’s main ingredient is cannabidiol (CBD)—which is different from the psychoactive, high-producing THC component of marijuana. Sy Mukherjee, Fortune, "Brainstorm Health: FDA Marijuana-Based Drug Approval, Pharma Innovation, GSK Shingles Vaccine," 25 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'psychoactive.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of psychoactive

1959, in the meaning defined above

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5 Jan 2019

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The first known use of psychoactive was in 1959

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More Definitions for psychoactive


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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Comments on psychoactive

What made you want to look up psychoactive? Please tell us where you read or heard it (including the quote, if possible).


to gather or build up little by little

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