1. a heavy wheel that stores rotational energy and helps maintain steady motion in a machine
Usage: mechanical engineering

Examples

• The flywheel in the engine smooths out power delivery between combustion cycles.
• When the potter’s wheel slowed down, the heavy flywheel kept it spinning steadily.
• The mechanic replaced the damaged flywheel to fix the car’s transmission problems.
• Old steam engines used massive flywheels to store energy from the pistons.
• The flywheel’s momentum carried the machine through brief power interruptions.
• Engineers designed a lighter flywheel to reduce the engine’s overall weight.