expanding universe
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.
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