Definition of hydrogen bomb in English:

hydrogen bomb

Syllabification: hy·dro·gen bomb

noun

  • An immensely powerful bomb whose destructive power comes from the rapid release of energy during the nuclear fusion of isotopes of hydrogen (deuterium and tritium), using an atom bomb as a trigger. Compare with atom bomb.
    More example sentences
    • The atom bomb, the hydrogen bomb, and ballistic missiles had all been ‘perfected.’
    • The atomic bomb was superseded in the 1950s by the hydrogen bomb, the potential power of which was at least ten times that of its predecessor.
    • A hydrogen bomb is triggered by an atomic bomb, and so could only be developed by countries that already had an atomic weapon capability.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody