1. a regular back-and-forth movement or swing between two points or positions
2. a repeated change between different states, conditions, or opinions
3. a single complete cycle of back-and-forth movement
Usage: physics; technical

Examples

• The pendulum’s oscillation slowed down gradually.
• Scientists measured the oscillation of the spring.
• There was a constant oscillation between hope and despair.
• The stock market showed wild oscillations throughout the day.
• Her mood oscillations made it hard to predict her reactions.
• The oscillation frequency determines the pitch of the sound.
• Political polls revealed oscillations in voter preferences.