Kilohertz (noun)

1. A unit of frequency equal to one thousand hertz.
2. A unit of measurement for the number of cycles per second of a periodic phenomenon.

Origin:

The term kilohertz was derived from the combination of the si prefix 'kilo-' meaning 'one thousand' and the unit of frequency 'hertz' named after the physicist heinrich hertz.

Examples:

1. The radio station broadcasts at a frequency of 100 kilohertz.
2. The oscilloscope displayed the waveform at a rate of 10 kilohertz.
3. An audio frequency range of 20 to 20,000 kilohertz is considered to be the range of human hearing.
4. The bandpass filter was designed to block signals below and above its cutoff frequency of 1 kilohertz.
5. The communication signal was transmitted at a frequency of 2.4 gigahertz, or 2,400 kilohertz.