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.
The Biden administration is poised to try to lower the amount of nicotine in tobacco products, an eleventh-hour effort that’s been years in the making. Nathaniel Weixel, The Hill, 13 Jan. 2025 The regulation wouldn't ban the sale of cigarettes but only require the level of nicotine to remain below a certain threshold, the specifics of which haven't been made publicly available. Tommy Tuberville, Newsweek, 8 Jan. 2025 These provide nicotine to ease withdrawal symptoms and help smokers quit cigarettes, which are much more dangerous. Katherine Hignett, Forbes, 30 Dec. 2024 Its efforts helped end a study of nicotine addiction in monkeys at the U.S. Food and Drug Administration (FDA), ban several dog experiments at the U.S. Department of Veterans Affairs (VA), and shut down toxoplasmosis research in cats at a U.S. Department of Agriculture lab. Bydavid Grimm, science.org, 10 Dec. 2024 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 Jan. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!