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impaction

American  
[im-pak-shuhn] / ɪmˈpæk ʃən /

noun

  1. an act or instance of impacting.

  2. the state of being impacted; close fixation.

  3. Dentistry. the condition in which a tooth is impacted.


Etymology

Origin of impaction

1730–40; < Late Latin impāctiōn- (stem of impāctiō ), equivalent to Latin impāct ( us ), past participle of impingere ( see impacted) + -iōn- -ion

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Many people no longer have space for their third molars – leading to impaction, crowding and often requiring surgical removal.

From Science Daily Jul. 11, 2026

Joey from The Donkey Sanctuary in Sidmouth, Devon, had a condition known as gastric impaction.

From BBC Feb. 2, 2024

A doctor can diagnose fecal impaction with a digital rectal exam and X-rays.

From Washington Post Jan. 23, 2023

"You hate to see an athlete injured in any way, but at the same time, an ACL versus an impaction injury to the tibial plateau, this is the much better injury."

From Fox News Dec. 7, 2021

If this apparatus is not available, other measures must be adopted varying with the nature of the body, its site, and the manner of its impaction.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Alexander Miles

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