- one million tons.
- an explosive force equal to that of one million tons of TNT, as that of atomic or hydrogen bombs. Abbreviation: MT
Origin of megaton
Related formsmeg·a·ton·ic [meg-uh-ton-ik] /ˌmɛg əˈtɒn ɪk/, adjectivemul·ti·meg·a·ton, noun
First recorded in 1950–55; mega-
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for megaton
Historical Examples of megaton
Larch put off another entertainment of small stuff, with a fifty megaton thermonuclear, viewscreen-piloted, among them.
British Dictionary definitions for megaton
Derived Formsmegatonic (ˌmɛɡəˈtɒnɪk), adjective
- one million tons
- an explosive power, esp of a nuclear weapon, equal to the power of one million tons of TNTAbbreviation: mt
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for megaton
unit of explosive power equal to one million tons of TNT, 1952, from mega- + ton. Related: Megatonnage.
Online Etymology Dictionary, © 2010 Douglas Harper