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metagalaxy

[met-uh-gal-uh k-see]
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noun, plural met·a·gal·ax·ies. Astronomy.
  1. the complete system of galaxies; the Milky Way and all the surrounding galaxies.
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Origin of metagalaxy

First recorded in 1925–30; meta- + galaxy
Related formsmet·a·ga·lac·tic [met-uh-guh-lak-tik] /ˌmɛt ə gəˈlæk tɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for metagalaxy

metagalaxy

noun plural -axies
  1. the total system of galaxies and intergalactic space making up the universe
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Derived Formsmetagalactic (ˌmɛtəɡəˈlæktɪk), adjective
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