megahertz
/ˈmɛɡəˌhɜrts/
noun
- A unit of frequency equal to one million hertz, used especially to measure radio waves and computer processor speed.
- Radio stations broadcast at different megahertz frequencies to avoid interference.
- The old computer had a processor speed of 500 megahertz.
- Modern smartphones run at speeds measured in gigahertz, not megahertz.