involution
American Heritage Dictionary:
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in·vo·lu·tion
(ĭn'və-lū'shən) 
n.
n.
- The act of involving.
- The state of being involved.
- Intricacy; complexity.
- Something, such as a long grammatical construction, that is intricate or complex.
- Mathematics. An operation, such as negation, which, when applied to itself, returns the original number.
- Embryology. The ingrowth and curling inward of a group of cells, as in the formation of a gastrula from a blastula.
- Medicine.
- A decrease in size of an organ, as of the uterus following childbirth.
- A progressive decline or degeneration of normal physiological functioning occurring as a result of the aging process.
[Latin involūtiō, involūtiōn-, from involūtus, past participle of involvere, to enwrap. See involve.]
involutional in'vo·lu'tion·al adj.Related Videos:
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involution
Oxford Dictionary of Geography:
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involution
1. The refolding of two nappes differing in age so that parts of the younger nappe lie below older rocks.
2. The convolution of layers of ground under periglacial conditions. This may occur when the active layer is trapped at the start of winter between the frozen surface and the permafrost below it. The resulting pressure distorts the trapped strata. Alternatively, involutions may result from the pressure exerted by expanding ice segregations.
A synonym for cryoturbation.
Saunders Veterinary Dictionary:
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involution
1. a rolling or turning inward.
2. one of the movements involved in the gastrulation of many animals.
3. a retrograde change of the entire body or in a particular organ, as the retrograde changes in the female genital organs that result in normal size after delivery.
4. the progressive degeneration occurring naturally with advancing age, resulting in shriveling of organs or tissues.
- uterine i. — reduction in size of the uterus in the period immediately after parturition.
Wikipedia on Answers.com:
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Involution
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Look up involution in Wiktionary, the free dictionary. |
Involution occurs when something turns in upon itself. It may refer to:
- Involute, a construction in the differential geometry of curves
- Involution (agriculture), intensification of production through increased labour inputs
- Involution (mathematics), a function that is its own inverse
- Involution (medicine), the shrinking of an organ (such as the uterus after pregnancy)
- Involution (philosophy), a "turning in" on one's self
- Involution (esoterism), several notions of a counterpart to evolution
- Involution (Meher Baba), the inner path of the human soul to the self
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This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
Translations:
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Involution
Dansk (Danish)
n. - indvikling, forvikling, potensopløftning
Nederlands (Dutch)
betrokkenheid, teruggaande ontwikkeling, verwikkeling, het kleiner worden van orgaan met de jaren, involutie (wiskunde), binnenwaartse krulling, ingewikkeldheid
Français (French)
n. - (Bot, Zool, Méd, Math) involution
Deutsch (German)
n. - Verwicklung, Potenzierung, Rückbildung
Ελληνική (Greek)
n. - περιπλοκή, μπέρδεμα, (μαθημ.) ενέλιξη
Italiano (Italian)
involuzione, complicazione, elevazione a potenza (mat.)
Português (Portuguese)
n. - envolvimento (m), elevação (f) a uma potência (Mat.)
Русский (Russian)
сложность, запутанность, обратное развитие
Español (Spanish)
n. - complicación, involución, potenciación
Svenska (Swedish)
n. - inveckling (äv. bildl.), trasslighet, inrullning (bot. el. zool.), återbildning (fysiol. el. med.), degeneration (biol.), potensupphöjning (matem.)
中文（简体）(Chinese (Simplified))
卷绕, 回旋, 内卷
中文（繁體）(Chinese (Traditional))
n. - 捲繞, 迴旋, 內卷
日本語 (Japanese)
n. - 巻込み, 内巻き, 回旋, もつれること, 複雑, 退化, 退縮, 対合, 累乗, 複雑さ
العربيه (Arabic)
(الاسم) لف, التفاف, تركيب معقد
עברית (Hebrew)
n. - מעורבות, סיבוך, העלאה בחזקה, התכווצות של איברים בגוף, התעקמות פנימה
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Copyrights:
American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
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Oxford Dictionary of Geography
A Dictionary of Geography. Copyright © Susan Mayhew 1992, 1997, 2004. All rights reserved.
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Saunders Veterinary Dictionary
Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.
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Wikipedia on Answers.com
This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Involution.
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