pendulum
Definition
A weight hung from a fixed point so that it can swing freely, especially a rod with a weight at the end that regulates a clockwork mechanism.
Example
"The pendulum swung slowly back and forth in the grandfather clock."
A weight hung from a fixed point so that it can swing freely, especially a rod with a weight at the end that regulates a clockwork mechanism.
"The pendulum swung slowly back and forth in the grandfather clock."