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.

Word History and Origins

Origin of expanding universe¹

First recorded in 1930–35

Example Sentences

With his support of gay marriage, President Obama has opened a new door in the ever-expanding universe of civil rights.

From The Daily Beast

Edward Hubble, the greatest astronomer of the 20th century, who discovered the expanding universe, he was inspired by Jules Verne.

From The Daily Beast

The imagination of man had expanded with the expanding universe.

From Project Gutenberg