1. Noun. One thousand million ( 109 ) watts, abbreviated as GW. ¹
¹ Source: wiktionary.com
Definition of Gigawatt
1. a unit of power [n -S]
Medical Definition of Gigawatt
1. Unit of power equal to 10^9 watts, 1000 megawatts, or 1 million kilowatts. 1 gigawatt is a typical size for a nuclear fission reactor, and is expected to be the typical size of a fusion reactor.
(09 Oct 1997)
