千兆赫兹 qiānzhàohèzī gigahertz Origin Definitions Defs Strokes Stroke Words Sentences Sents 千兆 qiānzhào giga- meaning one billion (10 to the 9th power); also used in computer networking to mean gigabits per second or 1000Base-T赫兹 赫茲 hèzī hertz hertz (Hz), the unit of frequency equal to one cycle per second