intussusception

noun

in·​tus·​sus·​cep·​tion ˌin-tə-sə-ˈsep-shən How to pronounce intussusception (audio)
: a drawing in of something from without: such as
a
: invagination
especially : the slipping of a length of intestine into an adjacent portion usually producing obstruction
b
: the assimilation of new material and its dispersal among preexistent matter
intussusceptive adjective

Examples of intussusception in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The child underwent surgery for intussusception − a condition commonly found in children between the ages of 6 months and 2 years, where one intestine slides into the other, causing a blockage, the suit states. Mark Harper, USA Today, 19 Aug. 2025 He was hospitalized from June 9 to June 12, underwent surgery for intussusception—a condition in which part of the intestine slides into another—and tested positive for E. coli and Campylobacter. Robert Alexander, MSNBC Newsweek, 19 Aug. 2025 Surgery is the main treatment for intussusception in adults. Sayaka Blickenderfer, Phd, Health, 13 Mar. 2025 The vaccine also carries a very small risk of intussusception. Anna Giorgi, Verywell Health, 25 Oct. 2024 The Mayo Clinic calls intussusception the most common cause of intestinal obstruction in children younger than 3 years old. Kathy Laughlin, Sun Sentinel, 22 July 2022 In the 35 years since, more than 8,000 families have received in excess of $4 billion to compensate them for the effects of severe allergic reactions, a type of brain swelling called encephalopathy, an intestinal problem called intussusception or other serious problems. Karen Kaplan Science and Medicine Editor, Los Angeles Times, 17 Aug. 2021 Offit helped develop one of two newer vaccines that increased the risk of intussusception less — and are still in use today. Matthew Herper, STAT, 13 Apr. 2021

Word History

Etymology

Latin intus within + susception-, susceptio action of undertaking, from suscipere to take up — more at susceptible

First Known Use

1707, in the meaning defined above

Time Traveler
The first known use of intussusception was in 1707

Browse Nearby Words

Cite this Entry

“Intussusception.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intussusception. Accessed 5 Sep. 2025.

Medical Definition

intussusception

noun
in·​tus·​sus·​cep·​tion -ˈsep-shən How to pronounce intussusception (audio)
1
: invagination
especially : the slipping of a length of intestine into an adjacent portion usually producing obstruction
2
: the deposition of new particles of formative material among those already embodied in a tissue or structure (as in the growth of living organisms) compare accretion, apposition sense 1
intussusceptive adjective

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