resonator
n. countable C1 Advanced UK //ɹˈɛzənˌeɪtɐ// res·onator
n. a device that makes a sound louder or a specific frequency stronger. It can also be a part of a machine that helps it vibrate.
n. a device or structure that amplifies or sustains a specific frequency of sound or vibration. Often used in acoustics, physics, or engineering to describe components that store and transfer energy at a particular rate.
The guitar has a hollow body that acts as a resonator.
Engineers added a mechanical resonator to the bridge to dampen the vibrations caused by passing trains.
In radio frequency circuits, a quartz resonator provides a highly stable frequency reference, ensuring that the transmitted signal remains consistent even under varying environmental conditions.