gigaton

noun

Etymology: Etymology tree English giga- English ton English gigaton From giga- + ton.

1. A measure of the strength of an explosion or a bomb based on how many billion tons of TNT would be needed to produce the same energy. (A derived unit for TNT equivalent.)

   “Holonyms: teraton < petaton < exaton (rare) < zettaton (rare) < yottaton (rare)”

   “Meronyms: ton of TNT < kiloton < megaton”

2. One billion tons.
3. One billion tons.
4. One billion tons.

   “Meronyms: kiloton < megaton”