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protostar
protostar definition
proto·star (prōt′ō stär′)
noun
in some cosmological theories, any of the millions of swirling clouds of dust and hydrogen gas that form within a protogalaxy and eventually evolve into thermonuclear stars
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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