oscillation

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oscillation

 [os″ĭ-la´shun]
a backward and forward motion, like that of a pendulum; also vibration, fluctuation, or variation.
high frequency oscillation a type of high frequency ventilation characterized by the use of active expiration.

os·cil·la·tion

(os'i-lā'shŭn),
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]

oscillation

/os·cil·la·tion/ (os″ĭ-la´shun) a backward and forward motion, like that of a pendulum.

oscillation (HFO)

[os′ilā′shən]
Etymology: L, oscillare, to swing
1 a back and forth motion.
2 vibration or the effects of a mechanical or electric vibrator.

oscillation

A rhythmic periodic motion.

os·cil·la·tion

(os'il-ā'shŭn)
1. A to-and-fro movement.
2. A stage in inflammation in which the accumulation of leukocytes in 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]

oscillation

a backward and forward motion, like that of a pendulum; also vibration, fluctuation or variation.