noun, plural kil·o·hertz, kil·o·hertz·es. Physics.
- a unit of frequency, equal to 1000 cycles per second. Abbreviation: kHz
noun
- one thousand hertz; one thousand cycles per secondSymbol: kHz
- A unit of frequency equal to 1,000 cycles per second (1,000 hertz). It is used in the measurement of radio, sound, and other waves.