distortion

1. In psychiatry, a defense mechanism that helps to repress or disguise unacceptable thoughts. 2. In dental impressions, the permanent deformation of the impression material after the registration of an imprint. 3. A twisting out of normal shape or form. 4. In ophthalmology, unequal magnification over a field of view. [L. distortio, fr. dis-torqueo, to wrench apart]
- barrel d. irregular image produced when peripheral magnification is greater than axial magnification. See Petzval surface.
- parataxic d. an attitude toward another person based on a distorted evaluation, usually because of too close an identification of that person with emotionally significant figures in the patient's past life.
- pincushion d. irregular image produced when axial magnification is greater than peripheral magnification. See Petzval surface.

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dis·tor·tion dis-'tȯr-shən n
1) the censorship of unacceptable unconscious impulses so that they are unrecognizable to the ego in the manifest content of a dream
2) a lack of correspondence of size or intensity in an image resulting from defects in an optical system

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dis·tor·tion (dis-torґshən) [dis-1 + torsio a twisting] 1. the state of being twisted out of a natural or normal shape or position. 2. in psychiatry, the process of altering or disguising unconscious ideas or impulses so that they become acceptable to the conscious mind. 3. in optics or radiology, deviation of an image from the true outline or shape of an object or structure.

Medical dictionary. 2011.

Synonyms:

Look at other dictionaries:

  • Distortion — Dis*tor tion, n. [L. distortio: cf. F. distortion.] 1. The act of distorting, or twisting out of natural or regular shape; a twisting or writhing motion; as, the distortions of the face or body. [1913 Webster] 2. A wresting from the true meaning …   The Collaborative International Dictionary of English

  • Distortion — (lat./engl. für ‚Störung, Verzerrung‘) steht: in der Nachrichtentechnik die ungewünschte Verfälschung eines Signals durch einen Verstärker, siehe Verzerrung (Akustik) in der Musik ein Effektgerät, siehe Verzerrer Siehe auch: Verzerrung Distorsion …   Deutsch Wikipedia

  • Distortion — Distortion. См. Коробление. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • distortion — I noun anamorphosis, camouflage, caricature, contortion, convolution, deception, deformation, deformity, disguise, disparity, disproportion, dissemblance, dissimilarity, dissimilitude, distortio, embroidery, enlargement, exaggeration, expansion,… …   Law dictionary

  • distortion — 1580s, action of distorting, from L. distortionem (nom. distortio), noun of action from pp. stem of distorquere (see DISTORT (Cf. distort)). Figurative use (of words, etc.) from 1640s …   Etymology dictionary

  • distortion — [n] deformity; falsification baloney*, bend, bias, BS*, buckle, coloring, contortion, crock, crookedness, exaggeration, intorsion, jazz*, jive*, lie, line, malconformation, malformation, misinterpretation, misrepresentation, misshape,… …   New thesaurus

  • distortion — [di stôr′shən] n. [L distortio] 1. a distorting or being distorted 2. anything distorted distortional adj …   English World dictionary

  • Distortion — This article is about technology, especially electrical engineering. For other uses, see Distortion (disambiguation). Distort redirects here. For other uses, see Distort (disambiguation). A distortion is the alteration of the original shape (or… …   Wikipedia

  • distortion — distortional, distortionary, adj. /di stawr sheuhn/, n. 1. an act or instance of distorting. 2. the state of being distorted or the relative degree or amount by which something is distorted or distorts. 3. anything that is distorted, as a sound,… …   Universalium

  • Distortion — (Roget s Thesaurus) >Irregularity of form. < N PARAG:Distortion >N GRP: N 1 Sgm: N 1 distortion distortion detortion contortion Sgm: N 1 twist twist crookedness &c.(obliquity) 217 Sgm: N 1 grimace grimace Sgm: N 1 deformity …   English dictionary for students

  • distortion — noun 1 change in shape/sound ADJECTIVE ▪ severe ▪ slight ▪ inevitable ▪ image VERB + DISTORTION ▪ …   Collocations dictionary

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