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missing mass

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noun Astrophysics.
the difference in mass in the universe between that observed to exist and that necessary for the closed universe model.
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Origin of missing mass

First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Scientific definitions for missing mass

missing mass
[ mĭsĭng ]

See dark matter.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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