exaton

== English == === Etymology === From exa- +‎ ton. === Noun === exaton (plural exatons) (rare, chiefly science fiction) A measure of the strength of an explosion or a bomb based on how many quintillion tons of TNT would be needed to produce the same energy. Holonyms: zettaton (rare) < yottaton (rare) Meronyms: ton of TNT < kiloton < megaton < gigaton < teraton < petaton