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Hubble constant   /hˈəbəl kˈɑnstənt/   Listen
Hubble constant

noun
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 Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today.  Synonyms: Hubble's constant, Hubble's parameter, Hubble parameter.






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Words linked to "Hubble constant" :   Hubble parameter, constant, Hubble's parameter, cosmology, cosmogeny, cosmogony



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