deviation


deviation
1. A turning away or aside from the normal point or course. 2. An abnormality. 3. In psychiatry and the behavioral sciences, a departure from an accepted norm, role, or rule. SYN: deviance. 4. A statistical measure representing the difference between an individual value in a set of values and the mean value in that set. [L. devio, to turn from the straight path, fr. de, from, + via, way]
- axis d. deflection of the electrical axis of the heart to the right or left of the normal. SEE ALSO: left axis d., right axis d., axis. SYN: axis shift.
- conjugate d. of the eyes 1. rotation of the eyes equally and simultaneously in the same direction, as occurs normally; 2. a condition in which both eyes are turned to the same side as a result of either paralysis or muscular spasm.
- dissociated horizontal d. a tendency often associated with repaired congenital esotropia in which an eye abducts when it is covered, in violation of Herring law.
- dissociated vertical d. a tendency often associated with congenital esotropia, in which an eye elevates, abducts, and extorts when covered, in violation of Herring law.
- immune d. SYN: split tolerance.
- d. to the left SYN: shift to the left (1).
- left axis d. a mean electrical axis of the heart pointing to −30° or more negative. See hexaxial reference system.
- primary d. the ocular d. seen in paralysis of an ocular muscle when the nonparalyzed eye is used for fixation.
- d. to the right SYN: shift to the right (1).
- right axis d. a mean electrical axis of the heart pointing to the right of +90°. See hexaxial reference system.
- secondary d. ocular d. seen in paralysis of an ocular muscle when the paralyzed eye is used for fixation.
- sexual d. a sexual practice that is biologically atypical, considered morally wrong, or legally prohibited. See bestiality, pedophilia. SYN: sexual perversion.
- skew d. a hypertropia in which the eyes move in opposite directions equally; an acquired hypertropia, often fairly comitant, not fitting the characteristic pattern of trochlear nerve damage or of ocular muscle abnormality; often due to a brainstem or cerebellar lesion.
- standard d. (SD, σ) 1. statistical index of the degree of d. from central tendency, namely, of the variability within a distribution; the square root of the average of the squared deviations from the mean. 2. a measure of dispersion or variation used to describe a characteristic of a frequency distribution.

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de·vi·a·tion .dē-vē-'ā-shən n an act or instance of diverging from an established way or in a new direction: as
a) evolutionary differentiation involving interpolation of new stages in the ancestral pattern of morphogenesis
b) noticeable or marked departure from accepted norms of behavior

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n.
1. (in ophthalmology) any abnormal position of one or both eyes. For example, if the eyes are both looking to one side when the head is facing forwards, they are said to be deviated to that side. Such deviations of both eyes may occur in brain disease. Deviations of one eye, such as dissociated vertical deviation, come into the category of squint (see strabismus).

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de·vi·a·tion (de″ve-aґshən) [L. deviare to turn aside] 1. a turning away from the regular standard or course. 2. in ophthalmology, strabismus. 3. in statistics, the difference between a sample value and the mean.

Medical dictionary. 2011.

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  • déviation — [ devjasjɔ̃ ] n. f. • v. 1300; bas lat. deviatio I ♦ Action de dévier. 1 ♦ Action de sortir de la direction normale; son résultat. Déviation d un projectile, son écart du plan de tir. ⇒ 2. dérivation. Déviation d un navire, d un avion. ⇒ dérive.… …   Encyclopédie Universelle

  • Deviation — may refer to: Deviation (statistics), the difference between the value of an observation and the mean of the population in mathematics and statistics Standard deviation, which is based on the square of the difference Absolute deviation, where the …   Wikipedia

  • Deviation [1] — Deviation. Ein Punkt beschreibe eine Kurve (s. die Figur) und flehe zur Zeit t in M; υ sei eine Geschwindigkeit zu dieser Zeit. Nach Ablauf einer weiteren Zeit ϑ sei M seine Lage. Ein zweiter Punkt gehe zur Zeit t gleichzeitig mit… …   Lexikon der gesamten Technik

  • Deviation — Déviation Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Déviation est un terme pouvant signifier : déviation de l arme adverse en sports de combat déviation vers l est, phénomène physique… …   Wikipédia en Français

  • deviation — deviation, aberration, divergence, deflection denote departure or an instance of departure from a straight course or procedure or from a norm or standard. Deviation, the term of widest application, usually requires qualification or a context to… …   New Dictionary of Synonyms

  • deviation — I noun aberrance, aberrancy, aberration, abnormality, alteration, anomalousness, anomaly, antipathy, antithesis, branching off, breach of practice, change of direction, change of position, contrast, dedinatio, defiance of custom, departure,… …   Law dictionary

  • deviation — de vi*a tion, n. [LL. deviatio: cf. F. d[ e]viation.] 1. The act of deviating; a wandering from the way; variation from the common way, from an established rule, etc.; departure, as from the right course or the path of duty. [1913 Webster] 2. The …   The Collaborative International Dictionary of English

  • Deviation — (lat.: deviare: „(vom Weg) abweichen“ zu via: „Weg“) steht für: Deviation (Navigation), Fehler des Magnetkompasses durch Störfelder am Fahrzeug Deviation (Seerecht), die Abweichung vom vertraglich festgelegten Reiseverlauf Deviation… …   Deutsch Wikipedia

  • déviation — DÉVIATION. s. f. Détour, action par laquelle un corps se détourne de son chemin. J ai descendu la rivière sans aucune déviation. Il se dit figurément dans le même sens. Il a suivi sans déviation, dans toute sa conduite, les principes qu il s est… …   Dictionnaire de l'Académie Française 1798

  • deviation — [dē΄vē ā′shən] n. [ME deviacion < LL deviatio] the act or an instance of deviating; specif., a) sharp divergence from normal behavior b) divergence from the official ideology or policies of a political party, esp. a Communist party c) the… …   English World dictionary

  • deviation — deviation. См. девиация. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.


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