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megaton

[meg-uh-tuhn]

noun

  1. one million tons. ton.

  2. an explosive force equal to that of one million tons ton of TNT, as that of atomic or hydrogen bombs. MT



megaton

/ ˈmɛɡəˌtʌn, ˌmɛɡəˈtɒnɪk /

noun

  1. one million tons

  2. mtan explosive power, esp of a nuclear weapon, equal to the power of one million tons of TNT

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Other Word Forms

  • megatonic adjective
  • multimegaton noun
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Word History and Origins

Origin of megaton1

First recorded in 1950–55; mega- + ton 1
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