One million cycles per second. Often used to indicate computer processing speed.
megahertz meg·a·hertz (měg'ə-hûrts')
n.
Abbr. MHz
One million cycles per second. Used especially as a radio frequency unit. Also called megacycle.
MegaHertz
(MHz) Millions of cycles per second. The unit of frequency used to measure the clock rate of modern digital logic, including microprocessors.
(1994-10-27)