nonsmoker

noun

non·​smok·​er ˌnän-ˈsmō-kər How to pronounce nonsmoker (audio)
plural nonsmokers
: a person who does not smoke tobacco : a person who is not a smoker
Radon poisoning is the leading cause of lung cancer in nonsmokers, according to the Environmental Protection Agency.Jonathan Scholles

Examples of nonsmoker 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.
However, the endothelial cells incubated in serum from marijuana smokers released 27% less nitric oxide than those treated with blood from nonsmokers. Sandee Lamotte, CNN Money, 28 May 2025 For example: How does the life expectancy of smokers and nonsmokers differ? Manon Bischoff, Scientific American, 23 May 2025 However, those who quit by age 30 had the same life expectancy as a nonsmoker. Scott Lafee, San Diego Union-Tribune, 24 June 2025 For example, the effect of genetics on white blood cell levels in the body differed between smokers and nonsmokers. Arun Durvasula, The Conversation, 14 May 2025 See All Example Sentences for nonsmoker

Word History

First Known Use

1846, in the meaning defined above

Time Traveler
The first known use of nonsmoker was in 1846

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Cite this Entry

“Nonsmoker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonsmoker. Accessed 20 Jul. 2025.

Medical Definition

nonsmoker

noun
non·​smok·​er -ˈsmō-kər How to pronounce nonsmoker (audio)
: a person who does not smoke tobacco

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