Hubble's Constant

(Pronunciation -تلفظ سنیۓ ) US:

Slow

Normal

Noun: Hubble's Constant

1. Hubble's Constant [ Synonyms: hubble's parameter, hubble constant, hubble parameter]
(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

Generic Words:

constant

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