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involution

noun
in·​vo·​lu·​tion | \ ˌin-və-ˈlü-shən How to pronounce involution (audio) \

Definition of involution

1a(1) : the act or an instance of enfolding or entangling : involvement
(2) : an involved grammatical construction usually characterized by the insertion of clauses between the subject and predicate
b : complexity, intricacy
2 : exponentiation
3a : an inward curvature or penetration
b : the formation of a gastrula by ingrowth of cells formed at the dorsal lip
4 : a shrinking or return to a former size
5 : the regressive alterations of a body or its parts characteristic of the aging process skeletal involution due to loss of estrogens at menopause
Other Words from involution Synonyms & Antonyms More Example Sentences Learn More about involution

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Other Words from involution

involutional \ ˌin-​və-​ˈlü-​shnəl How to pronounce involutional (audio) , -​shə-​nᵊl \ adjective

Examples of involution in a Sentence

the involution of the thriller's plot made it hard to follow

Recent Examples on the Web

 Notice that this is an involution as = ∂. In addition, the only self-conjugate itinerary is a string of O’s. — Nicholas Diaco, Scientific American, "Privacy and Counterfeit Coins," 20 Mar. 2018 The entire process is known as involution of the uterus. — Jennifer Hansen, WIRED, "My Incredible Shrinking Uterus," 6 Oct. 2010

First Known Use of involution

circa 1611, in the meaning defined at sense 1a(1)

History and Etymology for involution

Latin involution-, involutio, from involvere

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More Definitions for involution

involution

noun
in·​vo·​lu·​tion | \ ˌin-və-ˈlü-shən How to pronounce involution (audio) \

Medical Definition of involution

1a : an inward curvature or penetration
b : the formation of a gastrula by ingrowth of cells formed at the dorsal lip
2 : a shrinking or return to a former size involution of the uterus after pregnancy
3 : the regressive alterations of a body or its parts characteristic of the aging process specifically : decline marked by a decrease of bodily vigor and in women by menopause

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