multimegaton
/ˌmʌltiˈmɛɡəˌtʌn/
adjective
- Having an explosive power measured in millions of tons of TNT; extremely powerful, especially referring to nuclear weapons.
- The treaty banned the testing of multimegaton nuclear warheads.
- Scientists warned that a multimegaton asteroid impact could cause a global catastrophe.
- The military developed a multimegaton bomb capable of destroying an entire city.