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.
In addition to the high alcohol content, evidence of caffeine, nicotine and marijuana was found in Strain's blood. Stepheny Price, Fox News, 24 Mar. 2025 In the case of substance addictions such as involving alcohol, drugs, tobacco/nicotine, and other substance use disorders (SUD), generative AI can steer you in that direction. Lance Eliot, Forbes, 15 Mar. 2025 In today’s newsletter, Carrie Battan travels to Sweden to explore how a niche nicotine product went global. Erin Neil, The New Yorker, 12 Mar. 2025 Smoking cigarettes and using nicotine products increases your cortisol levels. Kirstyn Hill, Pharmd, Mph, Health, 3 Mar. 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 31 Mar. 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!