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hubble constant

 

Definitions from WordNet

Noun hubble constant has 1 sense
  1. Hubble's constant, Hubble constant - (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
    --1 is a kind of constant

Definitions from the Web

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