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protogalaxy

[proh-toh-gal-uh k-see, proh-toh-gal-] /ˌproʊ toʊˈgæl ək si, ˈproʊ toʊˌgæl-/
noun, plural protogalaxies. Astronomy.
1.
the large concentration of gas and dust from which a galaxy is formed.
Origin of protogalaxy
1945-1950
First recorded in 1945-50; proto- + galaxy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for protogalaxy

protogalaxy

/ˌprəʊtəʊˈɡæləksɪ/
noun (pl) -axies
1.
a cloud of gas in the early stages of its evolution into a galaxy
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
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