
1) Any system that resonates 2) Cavity resonator 3) Chamber 4) Resonating chamber
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1) Soundboard 2) Soundbox
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So the resonant frequencies of resonators, called normal modes, are equally spaced multiples (harmonics) of a lowest frequency called the fundamental frequency. The above analysis assumes the medium inside the resonator is homogeneous, so the waves travel at a constant speed, and that the shape of the resonator is rectilinear. If the resonator is ...
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http://en.wikipedia.org/wiki/Resonator

• (n.) Anything that resounds or resonates; • (n.) 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 ...
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acoustical device for reinforcing sound, as the sounding board of a piano, the `belly` of a stringed instrument, the air mass of an organ pipe, and ... [6 related articles]
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http://www.britannica.com/eb/a-z/r/37

(rez´o-na″tәr) an instrument used to intensify sounds. an electric circuit in which oscillations of a certain frequency are set up by oscillations of the same frequency in another circuit.
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http://www.encyclo.co.uk/local/21001
Res'o·na`tor noun (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.
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http://www.encyclo.co.uk/webster/R/62

Type: Term Pronunciation: rez′ō-nā′tŏr Definitions: 1. A device for employing inductance to create an electric current of very high potential and small volume.
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http://www.medilexicon.com/medicaldictionary.php?t=77613

[
n] - a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves 2. [n] - an electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude 3. [n] - any system that resonates
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http://www.webdictionary.co.uk/definition.php?query=resonator

An acoustic element which is used to attenuate the sound at narrow band frequencies in ducts and tubes. A simple resonator comprises a cavity enclosing a mass of air, with a narrow opening to the outside. The air mass effectively acts as a 'spring' at the resonant frequency of the cavity and under those conditions absorb appreciable sound energy ex...
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https://www.encyclo.co.uk/local/20687
resonating chamber noun a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves
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https://www.encyclo.co.uk/local/20974
noun any system that resonates
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https://www.encyclo.co.uk/local/20974
No exact match found.