—v.i. 1. to swing or move to and fro, as a pendulum does.
2. to vary or vacillate between differing beliefs, opinions, conditions, etc.: He oscillates regularly between elation and despair. 3. Physics.to have, produce, or generate oscillations.
4. Math.(of a function, sequence, etc.) to tend to no limit, including infinity: The sequence 0, 1, 0, 1, … oscillates.