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frequency

noun (LIGHT/SOUND/RADIO)
 
 
/ˈfriː.kwən.si/

Definition

[U] specialized the number of times that a wave, especially a light, sound, or radio wave, is produced within a particular period, especially one second: the frequency of light low frequency radiation The human ear cannot hear very high-frequency sounds.Physics in general [C] specialized a particular number of radio waves produced in a second at which a radio signal is broadcast: Do you know what frequency the BBC World Service is on?Radio
(Definition of frequency noun (LIGHT/SOUND/RADIO) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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