big bang theory
noun
: a theory in astronomy: the universe originated billions of years ago in a rapid expansion from a single point of nearly infinite energy density compare steady state theory
Examples of big bang theory in a Sentence
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Ten years ago, the Large Hadron Collider, the world’s largest and most powerful particle accelerator, found the Higgs boson particle, helping to explain the big bang theory and how the universe was formed.
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Nate Trela, USA TODAY, 20 Sep. 2017
Science has already yielded lots of answers, including the theory of evolution, the genetic code, quantum mechanics, general relativity and the big bang theory.
—John Horgan, Scientific American, 7 Aug. 2021
The big bang theory The entertainment business’s original script was simple.
—The Economist, 14 Nov. 2019
The old big bang theory as developed by Georges Lemaître, [George] Gamow and others is based on Einstein's theory of general relativity.
—Alexander Hellemans, Scientific American, 24 May 2018
If the big bang theory is an explanation on how the universe was created, then what existed before the big bang occurred?
—Dan Vergano, Cincinnati.com, 14 Mar. 2018
The title came from our whole thing, which is like the big bang theory.
—Andrew Dansby, Houston Chronicle, 24 Jan. 2018
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Nate Trela, USA TODAY, 20 Sep. 2017
Science has already yielded lots of answers, including the theory of evolution, the genetic code, quantum mechanics, general relativity and the big bang theory.
—John Horgan, Scientific American, 7 Aug. 2021
The big bang theory The entertainment business’s original script was simple.
—The Economist, 14 Nov. 2019
The old big bang theory as developed by Georges Lemaître, [George] Gamow and others is based on Einstein's theory of general relativity.
—Alexander Hellemans, Scientific American, 24 May 2018
If the big bang theory is an explanation on how the universe was created, then what existed before the big bang occurred?
—Dan Vergano, Cincinnati.com, 14 Mar. 2018
The title came from our whole thing, which is like the big bang theory.
—Andrew Dansby, Houston Chronicle, 24 Jan. 2018
Cite this Entry
“Big bang theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/big%20bang%20theory. Accessed 14 Jul. 2025.
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