frequency frequencythe rate of repetition of a regular event. The number of cycles of a wave per second. Expressed in units of Hertz (Hz) Related Articles: Glossary: HertzGlossary: airgunGlossary: audiogramGlossary: doppler effectGlossary: fundamental frequencyGlossary: octave band soundGlossary: spectrogramGlossary: threshold of hearingGlossary: hearing rangeGlossary: frequency weighting Derek Sutcliffe2017-02-26T20:09:58-05:00