protogalaxy

pro·to·gal·ax·y

[proh-toh-gal-uhk-see, proh-toh-gal-]
noun, plural pro·to·gal·ax·ies. Astronomy.
the large concentration of gas and dust from which a galaxy is formed.

Origin:
1945–50; proto- + galaxy

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Collins
World English Dictionary
protogalaxy (ˌprəʊtəʊˈɡæləksɪ) [Click for IPA pronunciation guide]
 
n , pl -axies
a cloud of gas in the early stages of its evolution into a galaxy

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Protogalaxy is always a great word to know.
So is flibbertigibbet. Does it mean:
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
a chattering or flighty, light-headed person.
Encyclopedia Britannica
Encyclopedia

protogalaxy

in cosmology, vast cloud of gas that by contraction and condensation becomes a galaxy of stars. In evolutionary ("big-bang") models of creation, protogalaxies appear early in the expansion phase of the universe; in the steady-state model they are slowly but continually forming from newly created matter

Learn more about protogalaxy with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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