nicotine

noun

nic·​o·​tine ˈni-kə-ˌtēn 

: 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

The pouches also closely resemble nicotine products, raising concerns among school officials about student health and the difficulty of distinguishing between the products. — ABC News, 22 Oct. 2026

Nootropic pouches have moved from fringe biohacker product to full wellness-aisle fixture, pitched as a nicotine-free, caffeine-forward answer to the morning coffee ritual. — Hanna Wickes, Kansas City Star, 20 Oct. 2026

But while most fans assumed that the bulk of the changes were a result of her chronic autoimmune disease, Gomez revealed for the first time that the change in her voice is a result of heavy nicotine use. — Isabella Albaig, Vulture, 19 Oct. 2026

Gomez, 34, explained her own nicotine habit left her voice forever changed in a warning given to fans. — Lauryn Overhultz, FOXNews.com, 19 Oct. 2026

Word History

Etymology

French, from New Latin nicotiana

First Known Use

1817, in the meaning defined above

Rhymes for nicotine

• acridine
• acrolein
• adenine
• alkylene
• aniline
• anthracene
• aquiline
• asphaltene
• atlantean
• atrazine
• butadiene
• butylene

Kids Definition

nicotine

noun

nic·​o·​tine ˈnik-ə-ˌtēn 

: a poisonous substance found in tobacco and used as an insecticide

Medical Definition

nicotine

noun

nic·​o·​tine ˈnik-ə-ˌtēn 

: 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.