from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A unit of frequency equal to one cycle per second. See Table at measurement.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. In the International System of Units, the derived unit of frequency; one (period or cycle of any periodic event) per second. Symbol: Hz
from the GNU version of the Collaborative International Dictionary of English
- n. a unit of frequency equal to one cycle per second; it is abbreviated Hz. It is commonly used to specify the frequency of radio waves, and also the clock frequencies in digital computers. For these applications, kilohertz and megahertz are the most commonly used units, derived from hertz.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. German physicist who with James Franck proved the existence of the stationary energy states postulated by Bohr (1887-1975)
- n. the unit of frequency; one hertz has a periodic interval of one second
- n. German physicist who was the first to produce electromagnetic waves artificially (1857-1894)
After Heinrich Rudolf Hertz.(American Heritage® Dictionary of the English Language, Fourth Edition)
Named after the German physicist Heinrich Rudolf Hertz. (Wiktionary)