Advanced atomic weapon (1-4)
I believe the answer is:
h-bomb
(Other definitions for h-bomb that I've seen before include "Hydrogen weapon" , "One first exploded in 1952" , "Explosive weapon" , "Fusion weapon" , "powerful arm" .)
I believe the answer is:
h-bomb
(Other definitions for h-bomb that I've seen before include "Hydrogen weapon" , "One first exploded in 1952" , "Explosive weapon" , "Fusion weapon" , "powerful arm" .)