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steady state theory
noun
: a theory in astronomy: the universe has always existed and has always been expanding with hydrogen being created continuously compare big bang theory
Examples of steady state theory in a Sentence
Recent Examples on the Web
Some people believed in the steady state theory, according to which the universe was there forever with an infinite past.
—Quanta Magazine, 5 Dec. 2018
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Word History
First Known Use
1948, in the meaning defined above
Time Traveler
The first known use of steady state theory was
in 1948
Dictionary Entries Near steady state theory
Cite this Entry
“Steady state theory.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/steady%20state%20theory. Accessed 17 Nov. 2024.
Kids Definition
steady state theory
noun
: a theory in astronomy that states that the universe has always existed and has always been expanding
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