Dictionary.com
definitions
  • synonyms

megaton

[meg-uh-tuhn]
See more synonyms for megaton on Thesaurus.com
noun
  1. one million tons.
  2. an explosive force equal to that of one million tons of TNT, as that of atomic or hydrogen bombs. Abbreviation: MT
Show More

Origin of megaton

First recorded in 1950–55; mega- + ton1
Related formsmeg·a·ton·ic [meg-uh-ton-ik] /ˌmɛg əˈtɒn ɪk/, adjectivemul·ti·meg·a·ton, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for megaton

Historical Examples

  • Larch put off another entertainment of small stuff, with a fifty megaton thermonuclear, viewscreen-piloted, among them.

    Space Viking

    Henry Beam Piper


British Dictionary definitions for megaton

megaton

noun
  1. one million tons
  2. an explosive power, esp of a nuclear weapon, equal to the power of one million tons of TNTAbbreviation: mt
Show More
Derived Formsmegatonic (ˌmɛɡəˈtɒnɪk), adjective
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

Word Origin and History for megaton

n.

unit of explosive power equal to one million tons of TNT, 1952, from mega- + ton. Related: Megatonnage.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper