involution

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Related to uterine involution: lochia, uterine subinvolution

in·vo·lu·tion

 (ĭn′və-lo͞o′shən)
n.
1.
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.
6. Medicine
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.]

in′vo·lu′tion·al adj.
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.

involution

(ˌɪnvəˈluːʃən)
n
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
ˌinvoˈlutional adj
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)

n.
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.
[1605–15; < Medieval Latin involūtiō. See involve, -tion]
in`vo•lu′tion•al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.involution - reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)
biological process, organic process - a process occurring in living organisms
2.involution - a long and intricate and complicated grammatical construction
grammatical construction, construction, expression - a group of words that form a constituent of a sentence and are considered as a single unit; "I concluded from his awkward constructions that he was a foreigner"
3.involution - marked by elaborately complex detail
complexity, complexness - the quality of being intricate and compounded; "he enjoyed the complexity of modern computers"
4.involution - the act of sharing in the activities of a groupinvolution - 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
mathematical operation, mathematical process, operation - (mathematics) calculation by mathematical methods; "the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation"; "they were learning the basic operations of arithmetic"
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.
Translations

in·vo·lu·tion

n. involución, cambio retrógrado.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
After a few days, the uterine involution is moderate, with the uterus measuring approximately 10 cm in length at 3 weeks and 8 cm at 6 weeks postpartum.
Therefore, this experiment could be determine the effect of supplementation in the early gestation periods on the prepartum energy balance and its relation to the ovulation period uterine involution and fertility.
Myometrial contractions help bacterial elimination and stimulate mucosal rejeneration (Katila and Reilas 2001), and oxytocin injections promote uterine involution especially when administered during estrus (Nikolakopoulos and Watson, 1999).
The uterine involution was well and there was no luminal abnormality in the ultrasonographic examinations performed at postpartum 30th d.
In buffaloes affected with retained placenta, these membranes are seen hanging out through vaginal canal and vulva which keep the cervical canal open, preventing normal physiological contractions and uterine involution due to atony.
The results of this study showed a dramatic decrease in mean PMN with advancement of the postpartum period due to infiltration of PMN during physiological events at calving, which gradually declined over the stage of the uterine involution. This finding is in agreement with previous studies that showed a reduction in the mean of PMN as the postpartum period approached the completion of histological involution (Gilbert et al., 1993; Kasimanickam et al., 2005), which usually occurs at 40 days post calving (Stevenson, 1997).
The study of the medium-term effect of MPA on collagen synthesis and distribution in the uterus can aid in understanding the underlying and causal microscopic changes in which collagen plays an important role, such as those that occur during decidualization, implantation, pregnancy and uterine involution. Yet despite the usefulness of its therapeutic effects, numerous side effects have been described (Monteiro et al.
Postpartum is one of the main periods of renovation, repair, and endometrial regeneration, leading to quick uterine involution from day 8 to day 43 postpartum in cattle [5].
The uterine involution starts immediately after the delivery of placenta [24].
(2012) Normal and abnormal uterine involution in cows monitored by ultrasound.
Indeed endometrial biopsies are more painful in postmenopausal women because of the development of uterine involution and cervical stenosis associated with hormonal changes occurring during the postmenopausal period.1722