follow Dictionary.com

Are yams and sweet potatoes the same?

involution

[in-vuh-loo-shuh n] /ˌɪn vəˈlu ʃən/
noun
1.
an act or instance of involving or entangling; involvement.
2.
the state of being involved.
3.
something complicated.
4.
Botany, Zoology.
  1. a rolling up or folding in upon itself.
  2. a part so formed.
5.
Biology. retrograde development; degeneration.
6.
Physiology. the regressive changes in the body occurring with old age.
7.
Grammar. a complex construction in which the subject is separated from its predicate by intervening clauses or phrases.
8.
Mathematics. a function that is its own inverse.
Origin
1605-1615
1605-15; < Medieval Latin involūtiōn- (stem of involūtiō). See involute, -ion
Related forms
superinvolution, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for superinvolution

involution

/ˌɪnvəˈluːʃən/
noun
1.
the act of involving or complicating or the state of being involved or complicated
2.
something involved or complicated
3.
(zoology) degeneration or structural deformation
4.
(biology) an involute formation or structure
5.
(physiol) reduction in size of an organ or part, as of the uterus following childbirth or as a result of ageing
6.
an algebraic operation in which a number, variable, expression etc, is raised to a specified power Compare evolution (sense 5)
7.
(grammar) an involved construction, such as one in which the subject is separated from the predicate by an additional clause
Derived Forms
involutional, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for superinvolution

involution

n.

late 14c., from Latin involutionem (nominative involutio) "a rolling up," noun of action from past participle stem of involvere (see involve). Related: Involutional.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
superinvolution in Medicine

involution in·vo·lu·tion (ĭn'və-lōō'shən)
n.

  1. A decrease in size of an organ, as of the uterus following childbirth.

  2. The ingrowth and curling inward of a group of cells, as in the formation of a gastrula from a blastula.

  3. A progressive decline or degeneration of normal physiological functioning occurring as a result of the aging process. Also called catagenesis.


in'vo·lu'tion·al adj.

superinvolution su·per·in·vo·lu·tion (sōō'pər-ĭn'və-lōō'shən)
n.
A reduction in the size of the uterus after childbirth to below its normal size. Also called hyperinvolution.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
superinvolution in Science
involution
  (ĭn'və-l'shən)   
  1. A mathematical operation, such as negation, which, when applied to itself, returns the original number.

  2. The ingrowth and curling inward of a group of cells, as in the formation of a gastrula from a blastula.

  3. A decrease in size of an organ, as of the uterus following childbirth.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for involution

Few English speakers likely know this word

Word Value for superinvolution

0
0
Scrabble Words With Friends

Nearby words for superinvolution