expanding universe

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noun Astronomy.

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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decorum
the act of or need for making up one's mind.
dignified propriety of behavior, speech, dress, etc.
a company of singers, especially an organized group employed in church service.
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See also big bang theory, Hubble's constant, cosmological redshift.

Origin of expanding universe

First recorded in 1930–35

Words nearby expanding universe

expanded, expanded code, expanded metal, expanded plastic, expander, expanding universe, expanding universe theory, expanse, expansible, expansile, expansion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020