expanding universe

noun

Definition of expanding universe

: a relativistic concept of the material universe according to which all celestial bodies are becoming steadily farther apart with the result that those more remote recede from the earth at greater speeds

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Dictionary Entries Near expanding universe

expanding pulley

expanding universe

expand on/upon

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Cite this Entry

“Expanding universe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/expanding%20universe. Accessed 16 Oct. 2021.

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