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View synonyms for expanding universe

expanding universe

noun

, Astronomy.
  1. a concept or representation of the universe, based on the observed redshifts of distant galaxies, in which the galaxies are assumed to be receding from each other at a speed proportional to their separation as a result of the expansion of the universe.


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Word History and Origins

Origin of expanding universe1

First recorded in 1930–35

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expanderexpanding universe theory