megaton
noun
mega·ton
ˈme-gə-ˌtən 
: an explosive force equivalent to that of one million tons of TNT
Examples of megaton in a Sentence
an atomic explosion with a force of several megatons
Recent Examples on the Web
The flash of light when the 57-megaton nuclear bomb exploded could be seen more than 620 miles away.
—
Lorenzino Estrada, AZCentral.com, 30 Oct. 2025
Among the casualties are the region’s rich kelp forests, which contribute upwards of $52 billion to the global economy and sequester nearly a megaton of carbon from the atmosphere every year.
—JSTOR Daily, 17 Oct. 2025
Hans Kristensen, director of the Nuclear Information Project at the Federation of American Scientists (FAS), told Newsweek that the DF-5C is possibly a replacement for the existing DF-5A, which also has a single multi-megaton warhead.
—Brendan Cole, MSNBC Newsweek, 3 Sep. 2025
The most powerful is Russia’s Tsar Bomb at fifty megatons, some 3,333 times more powerful than Little Man.
—Literary Hub, 18 Aug. 2025
See All Example Sentences for megaton
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Lorenzino Estrada, AZCentral.com, 30 Oct. 2025
Among the casualties are the region’s rich kelp forests, which contribute upwards of $52 billion to the global economy and sequester nearly a megaton of carbon from the atmosphere every year.
—JSTOR Daily, 17 Oct. 2025
Hans Kristensen, director of the Nuclear Information Project at the Federation of American Scientists (FAS), told Newsweek that the DF-5C is possibly a replacement for the existing DF-5A, which also has a single multi-megaton warhead.
—Brendan Cole, MSNBC Newsweek, 3 Sep. 2025
The most powerful is Russia’s Tsar Bomb at fifty megatons, some 3,333 times more powerful than Little Man.
—Literary Hub, 18 Aug. 2025
See All Example Sentences for megaton
Cite this Entry
“Megaton.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/megaton. Accessed 10 Nov. 2025.
Copy CitationKids Definition
megaton
noun
mega·ton
ˈmeg-ə-ˌtən
: an explosive force equal to that of one million tons of TNT
Love words? Need even more definitions?
Merriam-Webster unabridged
Share