Resonator
Resonator (-n?`t?r) , noun
[New Latin & German]
1.
(Acoustics) Anything which resounds; specifically, a vessel in the form of a cylinder open at one end, or a hollow ball of brass with two apertures, so contrived as to greatly intensify a musical tone by its resonance. It is used for the study and analysis of complex sounds.
2.
(Telegraphy) Anything that resounds or resonates;
(a)
(Telegraphy) An open box for containing a sounder and designed to concentrate and amplify the sound.
(b)
(Telegraphy) Any of various apparatus for exhibiting or utilizing the effects of resonance in connection with open circuits, as a device having an oscillating circuit which includes a helix of bare copper wire, a variable number of coils of which can be connected in circuit with a condenser and spark gap excited with an induction coil. It is used to create high-frequency electric brush discharges.
(c)
(Telegraphy) The antenna system and other high-frequency circuits of a receiving apparatus.