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bn:00025248n
Noun Concept
Categories: Dark concepts in astrophysics, Large-scale structure of the cosmos, Darkness, Theoretical physics, Physical cosmology
EN
dark matter  black matter  dark-matter  Dark gravity  Dark matter behavior
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(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
English:
fiction
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(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 & Open English WordNet
In astronomy, dark matter is a hypothetical form of matter that appears to not interact with light or the electromagnetic field. Wikipedia
Matter that is undetectable by its emitted radiation, but whose presence can be inferred from gravitational effects. Wikipedia Disambiguation
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)