big bang
noun
: the cosmic explosion that marked the beginning of the universe according to the big bang theory
In 1965 Arno A. Penzias and Robert W. Wilson of the Bell Telephone Laboratories discovered that the space of the universe is bathed with a diffuse radiation that is assumed to persist following the "big bang" expansion of the universe from an original fireball.—
V. L. Ginzburg
compare big crunch, big rip
V. L. GinzburgExamples of big bang in a Sentence
Recent Examples on the Web
The experts credited the city, home of the University of Central Florida, for giving students a big bang for their buck.
—Melissa Locker, Southern Living, 22 Oct. 2025
Urban delivered a two-hour, 45-minute set spanning 34 songs, determined to go out at his hometown arena with a big bang.
—Bryan West, USA Today, 18 Oct. 2025
And among old galactic halo stars, the Lithium-7 underabundance is a factor of two to three below big bang nucleosynthesis predictions.
—Bruce Dorminey, Forbes.com, 12 Aug. 2025
On October 9, 2022, astronomers detected a big bang.
—Andrew Paul, Popular Science, 30 July 2025
See All Example Sentences for big bang
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Melissa Locker, Southern Living, 22 Oct. 2025
Urban delivered a two-hour, 45-minute set spanning 34 songs, determined to go out at his hometown arena with a big bang.
—Bryan West, USA Today, 18 Oct. 2025
And among old galactic halo stars, the Lithium-7 underabundance is a factor of two to three below big bang nucleosynthesis predictions.
—Bruce Dorminey, Forbes.com, 12 Aug. 2025
On October 9, 2022, astronomers detected a big bang.
—Andrew Paul, Popular Science, 30 July 2025
See All Example Sentences for big bang
Cite this Entry
“Big bang.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/big%20bang. Accessed 29 Oct. 2025.
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