Definition of missing mass in English:

missing mass

noun ˌmɪsɪŋ ˈmas

Astronomy Physics

The amount by which a measured or calculated mass falls short of an expected or inferred mass; (Astronomy) the discrepancy between the mass of a galactic cluster calculated from the velocities of its component galaxies and the mass of the visible (luminous) stars and gas within it, usually attributed to the presence of dark matter; (also) the difference between the mass there must be in the universe if it is closed and the total mass accounted for by direct observation.

Origin

Late 19th century; earliest use found in American Naturalist. From missing + mass.

Definition of missing mass in US English:

missing mass

nounˌmɪsɪŋ ˈmas

Astronomy Physics

The amount by which a measured or calculated mass falls short of an expected or inferred mass; (Astronomy) the discrepancy between the mass of a galactic cluster calculated from the velocities of its component galaxies and the mass of the visible (luminous) stars and gas within it, usually attributed to the presence of dark matter; (also) the difference between the mass there must be in the universe if it is closed and the total mass accounted for by direct observation.

Origin

Late 19th century; earliest use found in American Naturalist. From missing + mass.

单词	missing mass
释义	Definition of missing mass in English: missing mass noun ˌmɪsɪŋ ˈmas Astronomy Physics The amount by which a measured or calculated mass falls short of an expected or inferred mass; (Astronomy) the discrepancy between the mass of a galactic cluster calculated from the velocities of its component galaxies and the mass of the visible (luminous) stars and gas within it, usually attributed to the presence of dark matter; (also) the difference between the mass there must be in the universe if it is closed and the total mass accounted for by direct observation. Origin Late 19th century; earliest use found in American Naturalist. From missing + mass. Definition of missing mass in US English: missing mass nounˌmɪsɪŋ ˈmas Astronomy Physics The amount by which a measured or calculated mass falls short of an expected or inferred mass; (Astronomy) the discrepancy between the mass of a galactic cluster calculated from the velocities of its component galaxies and the mass of the visible (luminous) stars and gas within it, usually attributed to the presence of dark matter; (also) the difference between the mass there must be in the universe if it is closed and the total mass accounted for by direct observation. Origin Late 19th century; earliest use found in American Naturalist. From missing + mass.
随便看	French honeysuckle French hood French horn French horns french idée fixe frenchie Frenchie frenchier frenchies frenchiest Frenchification frenchified frenchified frenchified frenchifies Frenchify frenchifying French Impressionism French Impressionist frenching french ingénue frenchise Frenchise Frenchism French ivory