missing mass
Americannoun
Etymology
Origin of missing mass
First recorded in 1975–80
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Because gravity behaved as predicted, changing the law of gravity does not explain the missing mass revealed by these observations.
From Science Daily ● Aug. 25, 2026
For more than two decades, only one experiment in the world has consistently reported detecting a signal of dark matter — the Universe’s missing mass that physicists have long tried to identify.
From Nature ● Mar. 18, 2019
The crash produced a new black hole containing 21 times the mass of the sun—the missing mass from the parent black holes was converted to energy in the form of gravitational waves.
From Salon ● Jun. 16, 2016
Suppose the π -meson is at rest and all of the missing mass goes into the muon’s kinetic energy.
From Textbooks ● Aug. 12, 2015
The missing mass has been converted into energy.
From "Meltdown" by Deirdre Langeland
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