inversion


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inversion

 [in-ver´zhun]
1. a turning inward, inside out, or other reversal of the normal relation of a part.
2. in psychiatry, a term used by Freud for homosexuality.
3. a chromosomal aberration due to the inverted reunion of the middle segment after breakage of a chromosome at two points, resulting in a change in sequence of genes or nucleotides.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

in·ver·sion

(in-ver'zhŭn),
1. A turning inward, upside down, or in any direction contrary to the existing one.
2. Conversion of a disaccharide or polysaccharide by hydrolysis into a monosaccharide; specifically, the hydrolysis of sucrose to d-glucose and d-fructose; so called because of the change in optic rotation.
3. Alteration of a DNA molecule made by removing a fragment, reversing its orientation, and putting it back into place.
4. Heat-induced transition of silica, in which the quartz tridymite or cristobalite changes its physical properties as to thermal expansion.
5. Conversion of a chiral center into its mirror image.
[L. inverto, pp. -versus, to turn upside down, to turn about]
Farlex Partner Medical Dictionary © Farlex 2012

inversion

(ĭn-vûr′zhən)
n.
1.
a. The act of inverting.
b. The state of being inverted.
2. Psychology In early psychology, behavior or attitudes in an individual considered typical of the opposite sex, including sexual attraction to members of one's own sex. No longer in technical use.
3. Chemistry Conversion of a substance in which the direction of optical rotation is reversed, from the dextrorotatory to the levorotatory or from the levorotatory to the dextrorotatory form.
4. Genetics A chromosomal rearrangement in which a segment of the chromosome breaks off and reattaches in the reverse direction.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

inversion

Orthopedics A frontal plane movement of the foot, where the plantar surface is tilted to face the midline of the body or the medial sagittal plane; the axis of motion lies on the sagittal and transverse planes; a fixed inverted position is referred to as a varus deformity
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

in·ver·sion

(in-vĕr'zhŭn)
1. A turning inward, upside down, or in any direction contrary to the existing one.
2. Conversion of a disaccharide or polysaccharide by hydrolysis into a monosaccharide; specifically, the hydrolysis of sucrose to d-glucose and d-fructose; so called because of the change in optic rotation.
3. Alteration of a DNA molecule made by removing a fragment, reversing its orientation, and putting it back into place.
4. Heat-induced transition of silica, in which the quartz tridymite or cristobalite changes its physical properties as to thermal expansion.
[L. inverto, pp. -versus, to turn upside down, to turn about]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

inversion

a CHROMOSOMAL MUTATION in which a segment becomes reversed and, although there is no loss or gain of genetic material, there may be a positive or negative POSITION EFFECT on the phenotype.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

in·ver·sion

(in-vĕr'zhŭn)
A turning inward, upside down, or in any direction contrary to the existing one.
[L. inverto, pp. -versus, to turn upside down, to turn about]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The framework of efficiency and externality analysis does not fully capture what is wrong with inversion. Instead of looking only at the effect of inversions, a more comprehensive way to evaluate inversions is to consider the underlying purpose of the corporate income tax and whether inversions align with that mission.
Most of seismic inversion attributes are post-stack seismic inversion.
A new surgical technique for dealing with uterine inversion. Aust N Z J Obstet Gynecol 2005;45(3):250-1.
Non-puerperal uterine inversion in association with uterine sarcoma: Case report in a 26-year-old and review of the literature.
These findings show that professional forecasters have not forecasted a yield curve inversion unless an inversion has already taken place.
The denominator of (1) describes the depth of an inversion layer.
We present a case of a 26-year-old with subacute uterine inversion which was corrected using Haultain's procedure.