| Dictionary.com Unabridged (v 1.1) Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006. |
gigaton
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| © 2008 Encyclopædia Britannica, Inc. |
| gig·a·ton
Audio Help (gĭg'ə-tŭn', jĭg'-) Pronunciation Key
n. A unit of explosive force equal to that of one billion (109) tons of TNT. |
| The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2006 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
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