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

“Who else had to get a wisdom tooth removed directly from the hospital the day after they gave birth,” she captioned the photo.

From Los Angeles Times

I got all four of my wisdom teeth out and was told the price would be around $700, but it actually ended up costing a little more than $1,000.

From MarketWatch

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

Thompson confirmed she would cancel her upcoming concerts after learning she had an infected wisdom tooth.

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