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oscillation

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os⋅cil⋅la⋅tion

  [os-uh-ley-shuhn]
Use oscillation in a Sentence
–noun
1. an act or instance of oscillating.
2. a single swing or movement in one direction of an oscillating body.
3. fluctuation between beliefs, opinions, conditions, etc.
4. Physics.
a. an effect expressible as a quantity that repeatedly and regularly fluctuates above and below some mean value, as the pressure of a sound wave or the voltage of an alternating current.
b. a single fluctuation between maximum and minimum values in such an effect.
5. Mathematics.
a. the difference between the least upper bound and the greatest lower bound of the functional values of a function in a given interval.
b. Also called saltus. the limit of the oscillation in an interval containing a given point, as the length of the interval approaches zero.
Origin:
1650–60; < L oscillātiōn- (s. of oscillātiō) a swinging, equiv. to oscillāt(us) (see oscillate ) + -iōn- -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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os·cil·la·tion   (ŏs'ə-lā'shən)   
n.  

    1. The act of oscillating.

    2. The state of being oscillated.

  2. A single oscillatory cycle.

os'cil·la'tion·al adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

oscillation 
1658, 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.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: os·cil·la·tion
Pronunciation: "äs-&-'lA-sh&n
Function: noun
1 : the action or state of oscillating
2 : a flow of electricity changing periodically from a maximum to a minimum; especially : a flow periodically changing direction
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

oscillation os·cil·la·tion (ŏs'ə-lā'shən)
n.

  1. The act of oscillating.

  2. The state of being oscillated.

  3. A single oscillatory cycle.

  4. A stage in inflammation in which the accumulation of white blood cells in the small vessels arrests the passage of blood, thus causing a to-and-fro movement of the blood at each cardiac contraction.

os'cil·la'tion·al adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
oscillation   (ŏs'ə-lā'shən)  Pronunciation Key 

  1. A repeating fluctuation in a physical object or quantity. See also attractor, harmonic motion.

  2. A single cycle of such fluctuation.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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