- anything that resonates.
- an appliance for increasing sound by resonance.
- an instrument for detecting the presence of a particular frequency by means of resonance.
- Electronics.
- a hollow enclosure (cavity resonator ) made of conducting material of such dimensions that electromagnetic radiation of a certain frequency will resonate.
- any circuit having this frequency characteristic.
- any body or system that displays resonance, esp a tuned electrical circuit or a conducting cavity in which microwaves are generated by a resonant current
