1. Plural of megahertz; units of frequency equal to one million hertz, commonly used to measure radio wave frequencies and computer processor speeds.
Usage: technical; often abbreviated as MHz

Examples

• The old radio operated at frequencies measured in megahertzes.
• Early computer processors ran at speeds of just a few megahertzes.
• The broadcast station transmits on 101.5 megahertzes.
• Modern CPUs operate at speeds measured in gigahertzes, not megahertzes.
• The wireless network uses frequencies in the 2.4 gigahertz band, which equals 2,400 megahertzes.