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Definition of Hubble 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 Parameter, Hubble's Constant, Hubble's Parameter
Category relationships: Cosmogeny, Cosmogony, Cosmology
Generic synonyms: Constant
Category relationships: Cosmogeny, Cosmogony, Cosmology
Generic synonyms: Constant
Definition of Hubble constant
1. Noun. (astronomy) a number the expresses the rate of expansion of the universe; the velocity at which a distant object is receding from the Earth divided by its distance; its reciprocal gives the age of the universe ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Hubble Constant
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