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Definition of Hubble's constant
1. Noun. (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.
Exact synonyms: Hubble Constant, Hubble Parameter, Hubble's Parameter
Category relationships: Cosmogeny, Cosmogony, Cosmology
Generic synonyms: Constant
Category relationships: Cosmogeny, Cosmogony, Cosmology
Generic synonyms: Constant
Lexicographical Neighbors of Hubble's Constant
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