megadeath

megadeath

[meg-uh-deth]
noun
a unit of one million deaths: used in estimating or predicting the fatalities that would occur in a nuclear war.

Origin:
1950–55; mega- + death

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World English Dictionary
megadeath (ˈmɛɡəˌdɛθ)
 
n
the death of a million people, esp in a nuclear war or attack

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

megadeath
1953, from mega- (q.v.) + death (n.). The death of one million persons, as a measure of the effectiveness of nuclear weapons.
Online Etymology Dictionary, © 2010 Douglas Harper
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