Definition of megaton
: an explosive force equivalent to that of one million tons of TNT
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Examples of megaton in a Sentence
an atomic explosion with a force of several megatons
Recent Examples of megaton from the Web
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Reports from Russia indicate the bomb could be as large as 100 megatons.
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One of the five new nuclear weapons systems Russian President Vladimir Putin unveiled last week was a terrible new doomsday torpedo that can cross entire oceans to deliver a multi-megaton punch.
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Ian Sample at The Guardian reports that for very small black holes, that radiation would eventually lead to a massive explosion, releasing 1 million megatons of energy.
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These modern warheads generally have a yield of around 0.5 to 1 megatons—or about 25 to 50 times more powerful than the Fat Boy bomb dropped on Nagasaki.
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The four-megaton weapon did not detonate only because its fourth and last safety switch held in place, the other three 50-cent pieces of equipment having armed themselves.
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Preliminary analysis of the September 3rd test indicated a yield of one megaton, revised downward to 150 kilotons.
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While there is no indication that North Korea could increase this number, even 0.1 percent is effective when power is measured in megatons.
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The Soviet Union tested its first megaton-range weapon 62 years ago.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'megaton.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of megaton
1952
MEGATON Defined for English Language Learners
Definition of megaton for English Language Learners
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: an explosive force that is equal to one million tons of TNT
Learn More about megaton
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See words that rhyme with megaton Spanish Central: Translation of megaton Britannica.com: Encyclopedia article about megaton
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