fusion bomb

/ˌfjuʒən bɑm/

Other forms: fusion bombs

Definitions of fusion bomb

1. noun

   a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium
   synonyms: H-bomb, hydrogen bomb, thermonuclear bomb

   type of:

   bomb

   an explosive device fused to explode under specific conditions

   atomic weapon, nuclear weapon

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