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megadeath

[meg-uh-deth] /ˈmɛg əˌdɛθ/
noun
1.
a unit of one million deaths: used in estimating or predicting the fatalities that would occur in a nuclear war.
Origin
1950-1955
1950-55; mega- + death
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for megadeath

megadeath

/ˈmɛɡəˌdɛθ/
noun
1.
the death of a million people, esp in a nuclear war or attack
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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Word Origin and History for megadeath
n.

1953, from mega- in scientific sense (one million) + death (n.). The death of one million persons, as a measure of the effectiveness of nuclear weapons. The resulting pile of dead bodies would be a megacorpse, according to writings on the topic.

Online Etymology Dictionary, © 2010 Douglas Harper
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