1. 1,000,000,000 periods per second
   - gigahertz, GHz, gigacycle per second, Gc

Derived forms: gigacycles

Type of: rate

• dozens
• dozenth
• dozer
• dozily
• dozy
• DP
• DPH
• DPhil
• dpi
• DPRK
• DPT vaccine
• Dr.
• Dr. J
• Dr. Johnson
• Dr. Seuss
• drab
• draba
• Draba verna
• drabble
• drably
• drabness
• dracaena
• Dracaena draco
• Dracaenaceae
• Dracenaceae