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megaton

American  
[meg-uh-tuhn] / ˈmɛg əˌtʌn /

noun

  1. one million tons.

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


megaton British  
/ ˈmɛɡəˌtʌn, ˌmɛɡəˈtɒnɪk /

noun

  1. one million tons

  2.  mt.  an 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

Other Word Forms

Etymology

Origin of megaton

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

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Example Sentences

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Most nuclear weapons today are variable-yield, or “dial-a-yield,” providing a set amount of explosive power that can range from fractions of a kiloton to multiples of a megaton.

From Scientific American • Mar. 10, 2022

The old B61 bombs had the explosive power of 1 megaton; the new ones have “dial-a-yield” options, ranging from 340 kilotons down to a fraction of a kiloton.

From Slate • Oct. 22, 2019

In his novel “Libra,” Don DeLillo calls the report “the megaton novel that James Joyce would have written if he’d moved to Iowa City and lived to be a hundred.”

From The New Yorker • Apr. 1, 2019

And given how Jeff Fisher and Les Snead — the coach and GM of the Rams — have expiring contracts, Carroll and Schneider will likely have a megaton of leverage.

From Seattle Times • Jul. 23, 2016

Then came Livermore’s turn, with a device code-named Morgen- stern that was expected to yield one megaton.

From "Big Science" by Michael Hiltzik

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