tetrahydrocannabinol

noun

tet·​ra·​hy·​dro·​can·​nab·​i·​nol ˌte-trə-ˌhī-drə-kə-ˈna-bə-ˌnȯl How to pronounce tetrahydrocannabinol (audio) -ˌnōl How to pronounce tetrahydrocannabinol (audio)
: thc
CBD is just one of dozens of cannabinoids found in cannabis, including tetrahydrocannabinol (THC), which is the one responsible for marijuana's famous high.Christie Aschwanden
… gummy bears infused with THC, or tetrahydrocannabinol, the main psychoactive ingredient in pot.Marshall Allen

Examples of tetrahydrocannabinol in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Two of these are tetrahydrocannabinol, or THC, the compound known for causing feelings of euphoria and relaxation, and CBD, which has no psychoactive effect. Miriam Fauzia, Dallas Morning News, 4 Feb. 2026 Cannabis produces a complex suite of bioactive compounds, including tetrahydrocannabinol (THC) and cannabidiol (CBD), but how these molecules evolved has long been a mystery. New Atlas, 10 Jan. 2026 Given this inconsistency, use cannabis products containing THC (short for delta-9-tetrahydrocannabinol) where its use is legal. Carly Fisher, Bon Appetit Magazine, 29 Oct. 2025 Marijuana, derived from the cannabis plant, contains two primary compounds — tetrahydrocannabinol (THC) and cannabidiol (CBD). Melissa Rudy, FOXNews.com, 15 Sep. 2025 See All Example Sentences for tetrahydrocannabinol

Word History

Etymology

tetrahydro- (combined with four atoms of hydrogen) + cannabin + -ol entry 1

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of tetrahydrocannabinol was in 1940

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Cite this Entry

“Tetrahydrocannabinol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tetrahydrocannabinol. Accessed 17 Feb. 2026.

Medical Definition

tetrahydrocannabinol

noun
tet·​ra·​hy·​dro·​can·​nab·​i·​nol -kə-ˈnab-ə-ˌnȯl How to pronounce tetrahydrocannabinol (audio) -ˌnōl How to pronounce tetrahydrocannabinol (audio)
: thc
especially : thc sense a

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