fluctuate

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fluc·tu·ate

(flŭk'tyū-āt),
1. To move in waves.
2. To vary, to change from time to time, as in referring to any quantity or quality, for example, height of blood pressure, concentration of substance in urine or blood, secretory activity, etc.
[L. fluctuo, pp. -atus, to flow in waves]
Farlex Partner Medical Dictionary © Farlex 2012

fluc·tu·ate

(flŭk'shū-āt)
1. To move in waves.
2. To vary, to change from time to time, as in referring to any quantity or quality (blood pressure, concentration of substance in urine or blood, secretory activity).
[L. fluctuo, pp. -atus, to flow in waves]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

fluc·tu·ate

(flŭk'shū-āt)
1. To move in waves.
2. To vary, to change from time to time.
[L. fluctuo, pp. -atus, to flow in waves]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Initially, the tinnitus was intermittent, but in time it became persistent, especially in the left ear, and it sometimes fluctuated in pitch and intensity.
Scientists noticed in experiments even 10 years ago that at a temperature just below the superconductivity threshold, the spins of many atoms in some copper oxide compounds fluctuated in a coordinated manner.
But a new analysis of ancient seawater has confirmed what some scientists began to suspect several years ago: During the last half-billion years or so, the oceans have fluctuated between varying chemistries.