Hertz Hertzthe unit of frequency; the number of cycles, or wavelengths, in a second (cycles/second) Related Articles: Glossary: frequencyGlossary: octave band soundHot Topic – Listening to Monterey BayWhat are common underwater sounds?FrequencyWhat units are used to measure sound?WavelengthTutorial: Sound Level ExposureTutorial: Frequency or PitchScience Tutorial: Frequency Derek Sutcliffe2017-02-26T20:09:58-05:00