1. Plural of gigacycle; units of frequency equal to one billion cycles per second, or one gigahertz (GHz).
Usage: technical; electronics and computing; often used interchangeably with gigahertz in modern usage

Examples

• The processor operates at 3.5 gigacycles per second.
• Modern CPUs are measured in gigacycles rather than megacycles.
• The radio frequency equipment was rated for 2.4 gigacycles.
• Engineers specified the device to run at multiple gigacycles.
• The oscillator produced a stable output of 5 gigacycles.