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2017 Word of the Year

gigaton

[gig-uh-tuhn, jig-] /ˈgɪg əˌtʌn, ˈdʒɪg-/
noun
1.
one billion tons.
Abbreviation: GT.
Origin of gigaton
giga- + ton1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Word Origin and History for gigaton
n.

by 1977, from giga- + ton.

Online Etymology Dictionary, © 2010 Douglas Harper
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