wisdom tooth

noun

: the third molar that is the last tooth to erupt on each side of the upper and lower jaws in humans

Examples of wisdom tooth in a Sentence

Recent Examples on the Web
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But in early 2026, Stubbs started experiencing pain in her jaw that doctors repeatedly told her was due to wisdom teeth. Vanessa Etienne, PEOPLE, 29 May 2026 She’s barely played clay matches this spring after getting her wisdom teeth pulled early on and catching a virus in Rome. Ava Wallace, New York Times, 21 May 2026 For example, Desert needs to get her wisdom teeth removed but says the TSA isn’t approving time off during the shutdown. ABC News, 25 Mar. 2026 Our third molars, also known as our wisdom teeth, either don’t develop, don’t erupt, or need to be yanked out. Sara Kiley Watson, Popular Science, 4 Feb. 2026 See All Example Sentences for wisdom tooth

Word History

Etymology

from being cut usually in the late teens

First Known Use

1824, in the meaning defined above

Time Traveler
The first known use of wisdom tooth was in 1824

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Cite this Entry

“Wisdom tooth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wisdom%20tooth. Accessed 5 Jun. 2026.

Kids Definition

wisdom tooth

noun
: the last tooth of the full set of teeth on each side of the upper and lower jaw in a human being

Medical Definition

wisdom tooth

noun
wis·​dom tooth ˈwiz-dəm- How to pronounce wisdom tooth (audio)
: the third molar that is the last tooth to erupt on each side of the upper and lower human jaw

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