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 roughly 180-foot-wide meteor’s explosion above a remote region of Russia released the energy equivalent of three to 50 megatons of TNT while leveling about 830 square miles of Siberian forest.
—
Andrew Paul,
Popular Science,
24 June 2026
The energy released would equal more than 1,000 megatons of TNT, or tens to hundreds of nuclear weapons, according to the Planetary Society, a nonprofit organization promoting space exploration.
—
Eric Lagatta,
USA Today,
16 Apr. 2026
The annual World Air Report published by the Swiss company IQAir claims wildfire smoke from Europe and Canada contributed to approximately 1,380 megatons of carbon being released across the world in 2025.
—
Jamie Hailstone,
Forbes.com,
25 Mar. 2026
The Starship launches to put such a constellation into space might produce the equivalent of 100 megatons of carbon dioxide into the atmosphere.
—
Eric Berger,
ArsTechnica,
24 Mar. 2026
See All Example Sentences for megaton
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Andrew Paul,
Popular Science,
24 June 2026
The energy released would equal more than 1,000 megatons of TNT, or tens to hundreds of nuclear weapons, according to the Planetary Society, a nonprofit organization promoting space exploration.
—
Eric Lagatta,
USA Today,
16 Apr. 2026
The annual World Air Report published by the Swiss company IQAir claims wildfire smoke from Europe and Canada contributed to approximately 1,380 megatons of carbon being released across the world in 2025.
—
Jamie Hailstone,
Forbes.com,
25 Mar. 2026
The Starship launches to put such a constellation into space might produce the equivalent of 100 megatons of carbon dioxide into the atmosphere.
—
Eric Berger,
ArsTechnica,
24 Mar. 2026
See All Example Sentences for megaton
Cite this Entry
“Megaton.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/megaton. Accessed 7 Jul. 2026.
Copy CitationKids Definition
megaton
noun
mega·ton
ˈmeg-ə-ˌtən
: an explosive force equal to that of one million tons of TNT
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