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Dictionary

expand'ing u'niverse

Astron.
a 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. Cf. Hubble's constant, cosmological redshift.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

expander

expanse

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