1. of, relating to, or characterized by oscillation; moving back and forth in a regular pattern
Usage: technical/scientific; formal

Examples

• The oscillational motion of the pendulum was perfectly regular.
• Engineers studied the oscillational behavior of the bridge during high winds.
• The oscillational frequency of the wave increased as the temperature rose.
• Oscillational patterns in the data suggested a cyclical trend.
• The oscillational energy of the system was gradually dissipated by friction.