wisdom tooth

American  

noun

1. the third molar on each side of the upper and lower jaws: the last tooth to erupt.

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idioms

1. cut one's wisdom teeth,  to attain maturity or discretion.

wisdom tooth British  

noun

1. Technical name: third molar.  any of the four molar teeth, one at the back of each side of the jaw, that are the last of the permanent teeth to erupt

2. to arrive at the age of discretion

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wisdom tooth Scientific  

/ wĭz′dəm /

1. One of four molars, the last on each side of both jaws in humans, usually appearing in young adulthood.

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Etymology

Origin of wisdom tooth

First recorded in 1660–70

Example Sentences

CMAT, 29, whose real name is Ciara Mary‑Alice Thompson, attended Thursday's ceremony but did not perform after being treated for an infected wisdom tooth which forced her to cancel tour dates earlier this month.

From Barron's

In a social media post, the 29-year-old rising star said she requires urgent dental surgery to remove two wisdom teeth.

From BBC

I remain her emergency contact, of course, receiving, over the last few years, texted updates of a midmorning migraine, the just-noticed emergence of a wisdom tooth or a more existential crisis.

From Los Angeles Times

He said he was taking medication for abscesses in his wisdom teeth when he woke up with "a really strange feeling" in his chest.

From BBC

And the crown was next to a wisdom tooth that might have to be yanked to make room for him to saw off the crown and fix the cavity.

From Los Angeles Times