petaton
nounEtymology From peta- + ton.
1
A measure of the strength of an explosion or a bomb based on how many quadrillion tons of TNT would be needed to produce the same energy.
- Holonyms: exaton (rare) < zettaton (rare) < yottaton (rare)
- Meronyms: ton of TNT < kiloton < megaton < gigaton < teraton