hertz

(noun) the unit of frequency; one hertz has a periodic interval of one second. Synonyms: Hz, cycle per second, cycles/second, cps, cycle.

(noun) German physicist who was the first to produce electromagnetic waves artificially (1857-1894). Synonyms: Hertz, Heinrich Hertz, Heinrich Rudolph Hertz.

(noun) German physicist who with James Franck proved the existence of the stationary energy states postulated by Bohr (1887-1975). Synonyms: Hertz, Gustav Hertz, Gustav Ludwig Hertz.