| 释义 |
missing mass
missing massn.1. The unobserved matter required for the observed rotation of most galaxies to be consistent with their masses as inferred from luminous matter.2. The difference between the observed mass of the universe and the larger mass required for gravity to halt the expansion of the universe.miss′ing mass′
n. the difference in mass in the universe between that observed to exist and that necessary for the closed universe model. Translationsmissing mass
missing mass The dark matter in a cluster of galaxies. See clusters of galaxies.missing mass[‚mis·iŋ ′mas] (astronomy) dark matter ThesaurusSeedark matter |