In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.
resonator
(noun) any system that resonates
resonator, resonant circuit
(noun) an electrical circuit that combines capacitance and inductance in such a way that a periodic electric oscillation will reach maximum amplitude
resonator, cavity resonator, resonating chamber
(noun) a hollow chamber whose dimensions allow the resonant oscillation of electromagnetic or acoustic waves
Source: WordNet® 3.1
resonator (plural resonators)
Any object or system that resonates
A hollow cavity whose dimensions are selected so as to resonate at a specific frequency
A resonant electronic circuit
A type of musical instrument, especially a guitar, that uses spun metal resonator cones to enhance the sound.
• ratooners
Source: Wiktionary
Res"o*na`tor (-n`tr), n. (Acoustics)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
2 April 2025
(adjective) secret or hidden; not openly practiced or engaged in or shown or avowed; “covert actions by the CIA”; “covert funding for the rebels”
In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.