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  Definition of Hubble constant
  1. (cosmology) the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer; the reciprocal of the Hubble constant is the age of the universe
Similar Words: Hubble's constant

 

 
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buccal_artery means a branch of the maxillary artery that supplies blood to the buccinator muscle and the cheek; ... more
 
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