noun
a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium
• Syn: ↑hydrogen bomb, ↑H-bomb, ↑thermonuclear bomb
• Hypernyms: ↑nuclear weapon, ↑atomic weapon, ↑bomb
* * *
a bomb that gets its energy from nuclear ↑fusion, especially a ↑hydrogen bomb
Useful english dictionary. 2012.