invagination

noun

in·​vag·​i·​na·​tion in-ˌva-jə-ˈnā-shən How to pronounce invagination (audio)
1
: an act or process of invaginating
specifically : the formation of a gastrula by an infolding of part of the wall of the blastula
2
: an invaginated part

Examples of invagination in a Sentence

Recent Examples on the Web In 2010, Seely, who was a member or the Arizona State University triathlon team when she was diagnosed with Chiari II Malformation, basilar invagination, and Ehlers-Danlos Syndrome, which affect her brain, spine, and connective tissues. Madison Thacker, The Arizona Republic, 2 Oct. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'invagination.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1658, in the meaning defined at sense 1

Time Traveler
The first known use of invagination was circa 1658

Dictionary Entries Near invagination

Cite this Entry

“Invagination.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/invagination. Accessed 24 May. 2024.

Medical Definition

invagination

noun
in·​vag·​i·​na·​tion -ˌvaj-ə-ˈnā-shən How to pronounce invagination (audio)
1
: an act or process of invaginating: as
a
: the formation of a gastrula by an infolding of part of the wall of the blastula
b
: intestinal intussusception
2
: an invaginated part
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