• figacycle per second,
• vigacycle per second,
• bigacycle per second,
• higacycle per second,
• yigacycle per second,
• tigacycle per second,
• gugacycle per second,
• gjgacycle per second,
• gkgacycle per second,
• gogacycle per second,
• g9gacycle per second,
• g8gacycle per second,
• gifacycle per second,
• givacycle per second,
• gibacycle per second,
• gihacycle per second,
• giyacycle per second,
• gitacycle per second,
• gigzcycle per second,
• gigscycle per second

The adjective form of "Gigacycle Per Second" is "gigacyclic".