| English noun: dark matter | |||
| 1. | dark matter (substance) (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 | ||
| Broader (hypernym) | matter | ||
| Part holonym | weakly interacting massive particle, WIMP | ||
| Domain category | cosmogeny, cosmogony, cosmology | ||