oscillation

oscillation
1. A to-and-fro movement. 2. A stage in the vascular changes in inflammation in which the accumulation of leukocytes in the small vessels arrests the passage of blood and there is simply a to-and-fro movement at each cardiac contraction. [L. oscillatio, fr. oscillo, to swing]

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os·cil·la·tion .äs-ə-'lā-shən n
1) the action or state of oscillating
2) a flow of electricity changing periodically from a maximum to a minimum esp a flow periodically changing direction

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os·cil·la·tion (os″ĭ-laґshən) [L. oscillare to swing] a backward and forward motion, like a pendulum; see also vibration, fluctuation, and variation.

Medical dictionary. 2011.

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  • oscillation — [ ɔsilasjɔ̃ ] n. f. • 1605; lat. oscillatio 1 ♦ Mouvement d un corps qui oscille. ⇒ balancement, branle. Oscillation d un pendule. ♢ Phys. Variation alternative d une grandeur, en fonction du temps, autour d une valeur fixe. ⇒ sinusoïde.… …   Encyclopédie Universelle

  • Oscillation — Os cil*la tion, n. [L. oscillatio a swinging.] [1913 Webster] 1. The act of oscillating; a swinging or moving backward and forward, like a pendulum; vibration. [1913 Webster] 2. Fluctuation; variation; change back and forth. [1913 Webster] His… …   The Collaborative International Dictionary of English

  • oscillation — 1650s, from Fr. oscillation, from L. oscillationem (nom. oscillatio), pp. of oscillare to swing, supposed to be from oscillum little face, lit. little mouth, a mask of open mouthed Bacchus hung up in vineyards to swing in the breeze …   Etymology dictionary

  • Oscillation — (v. lat.), 1) eine um einen mittleren Punkt (den Ruhepunkt od. Gleichgewichtspunkt des Körpers) hin u. hergehende Bewegung, wie sich solche in der Bewegung eines Pendels, in elastischen Vibrationen darlegt. Ein in O. gerathener Körper würde in… …   Pierer's Universal-Lexikon

  • Oscillation — Oscillation, s.v.w. Schwingung (s.d. und Schwingungsbewegung) …   Lexikon der gesamten Technik

  • Oscillation — Oscillation, lat. deutsch, Schwankung, schwingende Bewegung; oscilliren, schwanken, schwingen …   Herders Conversations-Lexikon

  • oscillation — index hesitation, indecision, trepidation Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • Oscillation —   [engl.], Schwingung …   Universal-Lexikon

  • oscillation — [äs΄ə lā′shən] n. [L oscillatio] 1. the act of oscillating 2. fluctuation; instability; variation 3. Physics a) repeated variation in the value of some physical quantity, as position or voltage b) a single instance or cycle of such a variation …   English World dictionary

  • Oscillation — For other uses, see oscillator (disambiguation) and oscillation (mathematics). An undamped spring–mass system is an oscillatory system. Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a… …   Wikipedia

  • Oscillation — Une oscillation est un mouvement ou une fluctuation périodique. Les oscillations sont soit à amplitude constante soit amorties. Elles répondent aux mêmes équations quel que soit le domaine. Sommaire 1 Mécanique 2 Électricité électronique 3… …   Wikipédia en Français

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