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Meaning of DARK MATTER

WordNet Dictionary
 
 Definition: [n]  (cosmology) a hypothetical form of matter that is believed to make up 90 percent of the matter in the universe; it does not absorb or emit light and does not collide with atomic particles but exerts gravitational force
 
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 See Also: matter, substance

 

 

Products Dictionary
 
 Definition: 

Dark Matter
This volume collects more than 30 (many previously unpublished) science fiction stories and essays by writers of African descent, spanning from 1887 to 2000 and including authors as varied as W.E.B. DuBois, Ishmael Reed, Samuel R. Delaney, Octavia Butler, and Nalo Hopkinson. A New York Times Notable Book for 2000.

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