steady state theory

noun

Definition of steady state theory

: 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, "On the Best Use of Science to Safeguard Humanity," 5 Dec. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'steady state theory.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of steady state theory

1948, in the meaning defined above

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Last Updated

24 Jun 2019

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The first known use of steady state theory was in 1948

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