Nuclear weapon

n.

1.

A weapon of great explosive power, such as an atomic bomb or a hydrogen bomb, which depends for most of its explosive power on the release of energy from within atomic nuclei by a nuclear reaction. A fission weapon or a fusion weapon. The term includes atomic shells for cannon.

Noun

1.

nuclear weapon - a weapon of mass destruction whose explosive power derives from a nuclear reaction

A-bomb, atom bomb, atomic bomb, atomic warhead, fission bomb, fusion bomb, H-bomb, hydrogen bomb, megaton bomb, nuclear warhead, nuke, plutonium bomb, thermonuclear bomb, thermonuclear warhead, W.M.D., weapon of mass destruction, WMD