involution(redirected from involutional)
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Related to involutional: involutional depression, involutional psychosis, involutional ectropion, involutional ptosis
a. The act of involving.
b. The state of being involved.
2. Intricacy; complexity.
3. Something, such as a long grammatical construction, that is intricate or complex.
4. Mathematics An operation, such as negation, which, when applied to itself, returns the original number.
5. Embryology The ingrowth and curling inward of a group of cells, as in the formation of a gastrula from a blastula.
a. A decrease in size of an organ, as of the uterus following childbirth.
b. 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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. the act of involving or complicating or the state of being involved or complicated
2. something involved or complicated
3. (Zoology) zoology degeneration or structural deformation
4. (Biology) biology an involute formation or structure
5. (Physiology) physiol reduction in size of an organ or part, as of the uterus following childbirth or as a result of ageing
6. (Mathematics) an algebraic operation in which a number, variable, expression, etc, is raised to a specified power. Compare evolution5
7. (Grammar) grammar an involved construction, such as one in which the subject is separated from the predicate by an additional clause
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
in•vo•lu•tion(ˌɪn vəˈlu ʃən)
1. an act or instance of involving or entangling; involvement.
2. the state of being involved.
3. something complicated.
4. Biol. retrogression; restoration of a former state.
5. Physiol. the regressive changes in the body occurring with old age.
6. a complex grammatical construction in which the subject is separated from its predicate by intervening clauses or phrases.
7. a mathematical function that is its own inverse.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||involution - reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)|
|2.||involution - a long and intricate and complicated grammatical construction|
|3.||involution - marked by elaborately complex detail|
|4.||involution - the act of sharing in the activities of a group; "the teacher tried to increase his students' engagement in class activities"|
group action - action taken by a group of people
commitment - an engagement by contract involving financial obligation; "his business commitments took him to London"
intervention, intercession - the act of intervening (as to mediate a dispute, etc.); "it occurs without human intervention"
group participation - participation by all members of a group
|5.||involution - the process of raising a quantity to some assigned power|
|6.||involution - the action of enfolding something|
change of shape - an action that changes the shape of something
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
n. involución, cambio retrógrado.
English-Spanish Medical Dictionary © Farlex 2012