metagalaxy definition by Webster's New World
Astron. the total assemblage of all galaxies, including all intergalactic matter; the measurable material universe
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- metagalactic adjective
metagalaxy definition by American Heritage Dictionary
noun pl. met·a·gal·ax·ies
The assemblage of all galaxies; the entire physical universe.