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oscillation - 7 dictionary results

os⋅cil⋅la⋅tion

[os-uh-ley-shuhn]
–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
os·cil·la·tion   (ŏs'ə-lā'shən)   
n.  
    1. The act of oscillating.
    2. The state of being oscillated.
  1. A single oscillatory cycle.
os'cil·la'tion·al adj.

Oscillation

Os`cil*la"tion\, n. [L. oscillatio a swinging.]

1. The act of oscillating; a swinging or moving backward and forward, like a pendulum; vibration.

2. Fluctuation; variation; change back and forth.

His mind oscillated, undoubtedly; but the extreme points of the oscillation were not very remote. --Macaulay.

Axis of oscillation, Center of oscillation. See under Axis, and Center.

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.

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

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.

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.

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