Hertz
WordNet
noun
(1) German physicist who with James Franck proved the existence of the stationary energy states postulated by Bohr (1887-1975)
(2) German physicist who was the first to produce electromagnetic waves artificially (1857-1894)
(3) The unit of frequency; one hertz has a periodic interval of one second
WiktionaryText
Noun
- In the International System of Units, the derived unit of frequency; one (period or cycle of any periodic event) per second. Symbol: Hz