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metagalaxy

American

[met-uh-gal-uhk-see] / ˌmɛt əˈgæl ək si /

noun

Astronomy.

the complete system of galaxies; the Milky Way and all the surrounding galaxies.

metagalaxy British

/ ˌmɛtəˈɡæləksɪ, ˌmɛtəɡəˈlæktɪk /

noun

the total system of galaxies and intergalactic space making up the universe

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

metagalactic

adjective

Etymology

Origin of metagalaxy

First recorded in 1925–30; meta- + galaxy

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023