definitions

missing mass

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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Nearby words

missileman, missilery, missing, missing fundamental, missing link, missing mass, missiology, mission, mission control, mission creep, mission specialist

Origin of missing mass

First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for missing mass

missing mass

[ mĭs′ĭng ]

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