- an act or instance of oscillating.
- a single swing or movement in one direction of an oscillating body.
- fluctuation between beliefs, opinions, conditions, etc.
- Physics.
- 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.
- a single fluctuation between maximum and minimum values in such an effect.
- Mathematics.
- the difference between the least upper bound and the greatest lower bound of the functional values of a function in a given interval.
- the limit of the oscillation in an interval containing a given point, as the length of the interval approaches zero.
- physics statistics
- regular fluctuation in value, position, or state about a mean value, such as the variation in an alternating current or the regular swinging of a pendulum
- a single cycle of such a fluctuation
- the act or process of oscillating
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