megacycle
/ˈmɛɡəˌsaɪkəl/
noun
- One million cycles per second; a unit of frequency, now usually called megahertz (MHz).
- Engineers used megacycles to measure radio wave frequencies before the term megahertz became standard.
- The transmitter operated at 10 megacycles.
- Old radios often listed their frequencies in megacycles.
Synonyms