A hydrogen bomb is a nuclear bomb in which energy is released from hydrogen atoms.
hydrogen bomb in British English
noun
a type of bomb in which energy is released by fusion of hydrogen nuclei to give helium nuclei. The energy required to initiate the fusion is provided by the detonation of an atomic bomb, which is surrounded by a hydrogen-containing substance such as lithium deuteride
Also called: H-bomb. See also fusion bomb
hydrogen bomb in American English
US
an extremely destructive nuclear bomb in which an initial atomic bomb explosion creates the necessary intense heat and pressure to start a nuclear fusion explosion of the heavy isotopes of hydrogen (deuterium and tritium); H-bomb
Examples of 'hydrogen bomb' in a sentence
hydrogen bomb
What is the difference between a hydrogen bomb and an atomic bomb?