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missing mass

noun, Astrophysics.
1.
the difference in mass in the universe between that observed to exist and that necessary for the closed universe model.
Origin
1975-1980
1975-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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missing-mass in Science
missing mass
  (mĭs'ĭng)   
See dark matter.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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