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.
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
"And then we administered the cola three times a day, over a four-day period to break down the impaction."
From BBC ● Feb. 2, 2024
Fecal impaction can also lead to diarrhea, because of watery stool from higher up in the gastrointestinal tract passing around stuck stool, Rao says.
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
The impaction of such soils by stock treading on them seems rather to advance than to hinder the growth.
From Clovers and How to Grow Them by Thomas Shaw
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
