atomic bomb

noun

1
: a bomb whose violent explosive power is due to the sudden release of energy resulting from the splitting of nuclei of a heavy chemical element (such as plutonium or uranium) by neutrons in a very rapid chain reaction

called also atom bomb

2
: a nuclear weapon (such as a hydrogen bomb)

Examples of atomic bomb in a Sentence

Recent Examples on the Web
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.
On a visit to Hiroshima’s Peace Memorial Park and the Peace Memorial Museum, explore the resilience of those who survived the devastation of the atomic bomb dropped on the city during World War II. AFAR Media, 29 July 2025 Today, apocalyptic narratives, from Hulu’s Paradise to Leave the World Behind on Netflix and James Cameron’s upcoming adaptation of the atomic bomb exposé Ghosts of Hiroshima, are increasingly shaping real-world demand. Abby Montanez, Robb Report, 29 July 2025 Children who lived near a St. Louis creek polluted with radioactive atomic bomb waste from the 1940s through the 1960s were more likely to be diagnosed with cancer over their lifetimes than children who lived farther from the waterway, a new study has found. Ronnie Cohen, NPR, 21 July 2025 Tsushima gives the fervid speculation around Miki’s murder a precise historical anchor: There was even a rumor that a man who had been a victim of the atomic bombs had manipulated the children into committing this violent act. Katie Kitamura, Harpers Magazine, 16 July 2025 See All Example Sentences for atomic bomb

Word History

First Known Use

1914, in the meaning defined at sense 1

Time Traveler
The first known use of atomic bomb was in 1914

Cite this Entry

“Atomic bomb.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/atomic%20bomb. Accessed 5 Aug. 2025.

Kids Definition

atomic bomb

noun
1
: a bomb whose violent explosive power is due to the sudden release of energy resulting from the splitting of nuclei of a heavy chemical element (as plutonium or uranium) by neutrons

called also atom bomb

2

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