v.
1. intr. & tr. a swing to and fro like a pendulum. b move to and fro between points.
2 intr. vacillate; vary between extremes of opinion, action, etc.
3 intr. Physics move with periodic regularity.
4 intr. Electr. (of a current) undergo high-frequency alternations as across a spark-gap or in a valve-transmitter circuit.
5 intr. (of a radio receiver) radiate electromagnetic waves owing to faulty operation.
Derivatives:
oscillation n. oscillator n. oscillatory adj.
Etymology: L oscillare oscillat- swing