Mass Destruction

A bomb that derives its destructive power from the rapid release of nuclear energy by fission of heavy atomic nuclei, causing damage through heat, blast, and radioactivity. In such a bomb two pieces of a fissile material are brought together by a conventional explosion to form a super critical mass. Neutrons then cause an uncontrolled fission chain reaction that quickly releases large amounts of energy.

An explosive weapon of great destructive power derived from the rapid release of energy in the fission of heavy atomic nuclei, as of uranium 235. Also called A-bomb, atomic bomb; Also called fission bomb.

Atomic bomb or A-bomb, weapon deriving its explosive force from the release of atomic energy through the fission (splitting) of heavy nuclei a bomb deriving its destructive power from the release of nuclear energy.
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