mega·​ton | \ ˈme-gə-ˌtən How to pronounce megaton (audio) \

Definition of megaton

: an explosive force equivalent to that of one million tons of TNT

Examples of megaton in a Sentence

an atomic explosion with a force of several megatons
Recent Examples on the Web The explosion blew the silo blast doors off and sent chunks of debris flying everywhere, including the nine-megaton nuclear warhead that sat atop the missile. Vince Guerrieri, Popular Mechanics, "40 Years Ago, We Almost Blew Up Arkansas," 18 Sep. 2020 The use of megaton bombs to kill individuals meant, of course, that many hundreds of thousands of other people would also be killed. Jessica T. Mathews, The New York Review of Books, "The New Nuclear Threat," 22 July 2020 Guard Crush, not Gaiden Previous SlideNext Slide This fact plays directly into SoR4's megaton difference: a combo meter, tied to a new scoring system. Sam Machkovech, Ars Technica, "Streets of Rage 4 review: This beat-’em-up revival beats them all," 29 Apr. 2020 In China alone, the economic slowdown has kept 200 megatons of CO2 out of the atmosphere, according to one analysis from the Centre for Research on Energy and Clean Air, a stunning 25 percent reduction in the country’s emissions. Matt Simon, Wired, "The Coronavirus Pandemic Is Bringing Down Emissions, But Not for Long," 12 Mar. 2020 The flash from the largest—which, at 15 megatons, was 1,000 times stronger than the detonation that flattened Hiroshima—was visible in Okinawa, 2,600 miles away. The Economist, "Fragments and ruins A journey through the lasting traces of human civilisation," 12 Mar. 2020 Its total power amounted to 200 megatons of TNT, or 13,000 Little Boy atomic bombs. Jessica Boddy, Popular Science, "Ranked: the loudest sounds ever measured," 3 Feb. 2020 Tsar Bomba,’’ with a force estimated at about 50 megatons., "In 1961, the Soviet Union tested a hydrogen bomb, the ‘‘Tsar Bomba,’’ with a force estimated at about 50 megatons. The Soviet Party Congress approved a resolution ordering the removal of Josef Stalin’s body from Lenin’s tomb.," 30 Oct. 2019 The fires have emitted 400 megatons of carbon dioxide and produced harmful pollutants, the European Union's Copernicus monitoring program said. NBC News, "Australians urged to flee as huge wildfires revitalize," 9 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'megaton.' 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 megaton

1952, in the meaning defined above

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The first known use of megaton was in 1952

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Last Updated

26 Sep 2020

Cite this Entry

“Megaton.” Dictionary, Merriam-Webster, Accessed 20 Oct. 2020.

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English Language Learners Definition of megaton

: an explosive force that is equal to one million tons of TNT

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