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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'steady state theory.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 28 Feb. 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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