hydrogen bomb


Definition of hydrogen bomb 

: a bomb whose violent explosive power is due to the sudden release of atomic energy resulting from the fusion of light nuclei (as of hydrogen atoms) at very high temperature and pressure to form helium nuclei

Examples of hydrogen bomb in a Sentence

Recent Examples on the Web

In September, North Korea tested its first hydrogen bomb, vastly more powerful than its previous tests, and quickly followed up by testing its first intercontinental ballistic missiles capable of reaching the U.S. mainland. Matt Stiles, latimes.com, "South Korea's president was matchmaker for the nuclear summit — but could take the blame if it fails," 7 June 2018 During Trump’s first year in office, Kim raced ahead with breakthrough tests of a hydrogen bomb and missiles capable of hitting the US mainland. Jane Perlez, BostonGlobe.com, "Kim’s China visit strengthens his hand heading into nuclear talks," 28 Mar. 2018 But, so far, there’s been no independent confirmation that North Korea actually has a hydrogen bomb. Mirren Gidda, Newsweek, "What We Know About North Korea’s Hydrogen Bomb," 6 Jan. 2016 Most hydrogen bombs are rated in megatons, the equivalent of 1,000 kilotons. Popular Mechanics Editors, Popular Mechanics, "What To Do in a Nuclear Attack," 7 Feb. 2018 Stability North Korea rattled the region last year with its sixth underground nuclear explosion — of a possible hydrogen bomb — and 24 missile tests, including of a new intercontinental ballistic missile capable of hitting all of the United States. Motoko Rich, New York Times, "Nixon Did It. Why Not Trump? Crib Notes for a Presidential Summit," 11 June 2018 North Korea claimed the explosion was from a hydrogen bomb, a more complicated design that requires a nuclear bomb to trigger a secondary explosion that's vastly more destructive. NBC News, "North Korea's many nuclear weapons and how to rid the world of them," 11 June 2018 Democrats argued that a witness such as Strzok would not be expected to publicly disclose sensitive information like the blueprint for a hydrogen bomb. Aaron Blake, chicagotribune.com, "7 key moments from FBI agent's Peter Strzok's wild House hearing," 12 July 2018 Estimates range from 20 to 60 warheads, and its latest test was apparently of a hydrogen bomb, 100 times bigger than the earliest devices. The Economist, "North Korea presents nuclear disarmament’s biggest challenge yet," 5 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydrogen bomb.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hydrogen bomb

1947, in the meaning defined above

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Last Updated

26 Sep 2018

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Time Traveler for hydrogen bomb

The first known use of hydrogen bomb was in 1947

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More Definitions for hydrogen bomb

hydrogen bomb


English Language Learners Definition of hydrogen bomb

: a bomb that produces an extremely powerful and destructive explosion when hydrogen atoms unite

hydrogen bomb


Kids Definition of hydrogen bomb

: a bomb whose great power is due to the sudden release of energy when the central portions of hydrogen atoms unite

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