Atomic bomb

имя существительное атомная бомба Синоним(ы): fission bomb

Большой англо-русский словарь

Atomic bomb

noun 1. a bomb whose violent explosive power is due to the sudden release of energy resulting from the splitting of nuclei of a heavy chemical element (as plutonium or uranium) by neutrons in a very rapid chain reaction — called also atom bomb 2. a nuclear weapon (as a hydrogen bomb)

Merriam-Webster's Collegiate Dictionary