megaton

Etymology

metric prefix mega- + ton

noun

1. A measure of the strength of an explosion or a bomb based on how many million tons of TNT would be needed to produce the same energy.
   The sins of all our fathers, being dumped on us — the sons The only choice we're given is: How many megatons? And I eschew you! And I say: Screw you! And I hope you're blue, too. 1986, Kirk Thatcher, 44:05 from the start, in Star Trek IV: The Voyage Home, Paramount Pictures, →OCLC
   Integrating data from all continents and major biomes, we conservatively estimate 20 × 1015 (20 quadrillion) ants on Earth, with a total biomass of 12 megatons of dry carbon. 19 Sept 2022, Schultheiss et al., “The abundance, biomass, and distribution of ants on Earth”, in Proceedings of the National Academy of Sciences of the United States of America, page 1, column 2
2. One million tons.