Wiktionary
gigajoule
n. One thousand million ( 109 ) joules, abbreviated as GJ.
Usage examples of "gigajoule".
The beam itself was rated in gigajoules per second and cut through the heavy armor of the Posleen ship like tissue paper.
Each capsule deploys a gigajoule charge and generates multiple, independently targetable beams at a ten-thousandth of an Angstrom.