resonator
US /ˈrez.ən.eɪ.t̬ɚ/
UK /ˈrez.ən.eɪ.t̬ɚ/

1.
Resonator
a device or system that exhibits resonance or resonant effects, especially as an electrical circuit or a cavity
:
•
The guitar's resonator amplifies the sound.
Der Resonator der Gitarre verstärkt den Klang.
•
Microwave ovens use a cavity resonator.
Mikrowellenherde verwenden einen Hohlraumresonator.