dark_matter |
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| 1. | [ noun ] (cosmology) a hypothetical form of matter that is believed to make up 90 percent of the matter in the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force | |
| Related terms: | substance weakly_interacting_massive_particle cosmology | |
| Similar spelling: |
dark_meat |
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