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.
Smokeless tobacco or alternative nicotine products, such as chewing tobacco, will soon be banned at Detroit's sports stadiums. Dana Afana, Freep.com, 22 Oct. 2025 Healey also proposed new taxes on candy, prescription drugs and synthetic nicotine products — levies that the state legislature ultimately rejected. Fortune, 21 Oct. 2025 Critics also argue that adults are capable of deciding for themselves whether to use the products and that the city should instead focus on ensuring that kids and underage buyers don't buy nicotine in the first place. Seth Klamann, Denver Post, 14 Oct. 2025 It is designed to test for vaporized tobacco, marijuana, nicotine products, and e-cigarette devices. Colson Thayer, PEOPLE, 10 Oct. 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 29 Oct. 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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