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Defenition of the word Hubble Constant

    • Defenition of the word Hubble Constant

      • Ratio of outward speed of galaxies to their distances from Earth.
      • (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
      • (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 Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today

    Hypernyms for the word Hubble Constant

      • constant

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