bn:00025248n
Noun Concept
Categories: Celestial mechanics, History of science and technology in the Netherlands, Astroparticle physics, Dark matter, Articles with short description
EN
dark matter
EN
(cosmology) a hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force WordNet 3.0
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EN
(cosmology) a hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force WordNet 3.0 & WordNet 2020
Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total mass–energy density or about 2.241×10−27 kg/m3. Wikipedia
Mysterious non-luminous matter comprising most of the matter in our observable universe Wikidata
Matter that cannot be detected by their radiation but whose presence is inferred from gravitational effects. OmegaWiki
Particles of matter that cannot be detected by their radiation but whose presence is inferred from gravitational effects. Wiktionary
Particles of matter that cannot be detected by their radiation. Wiktionary (translation)