nicotine

noun

nic·​o·​tine ˈni-kə-ˌtēn How to pronounce nicotine (audio)
: a poisonous alkaloid C10H14N2 that is the chief active principle of tobacco and is used as an insecticide

Examples of nicotine 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.
Blood and urine metabolites of THC, cannabidiol (CBD) and nicotine were measured, along with cholesterol levels, triglyceride levels, and body mass index (BMI). Paul McClure 31, New Atlas, 31 May 2025 So that means, in communities with NFG, someone of legal age is free to buy cannabis to smoke but cannot purchase a nicotine pouch or a cigar for a round of golf or a wedding. Peter Brennan, Boston Herald, 26 May 2025 Recent research suggests that CBD may help reduce the urge to use nicotine by inhibiting the metabolism of nicotine in the body, which can lower cravings and make withdrawal symptoms more manageable. Tribune Content Agency, Mercury News, 19 May 2025 Chemical and microscopic analyses of the tubes revealed traces of nicotine and vilca bean, a hallucinogen related to the drug DMT. Sonja Anderson, Smithsonian Magazine, 14 May 2025 See All Example Sentences for nicotine

Word History

Etymology

French, from New Latin nicotiana

First Known Use

1817, in the meaning defined above

Time Traveler
The first known use of nicotine was in 1817

Cite this Entry

“Nicotine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nicotine. Accessed 18 Jun. 2025.

Kids Definition

nicotine

noun
nic·​o·​tine ˈnik-ə-ˌtēn How to pronounce nicotine (audio)
: a poisonous substance found in tobacco and used as an insecticide

Medical Definition

nicotine

noun
nic·​o·​tine ˈnik-ə-ˌtēn How to pronounce nicotine (audio)
: a poisonous alkaloid C10H14N2 that is the chief active principle of tobacco and that is used as an insecticide and is sometimes used in smoking cessation aids

Note: Trademarks for nicotine include Nicoderm, Nicorette, and Nicotrol.

More from Merriam-Webster on nicotine

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