| / English Dictionary |
HUBBLE'S PARAMETER
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
(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 constant; Hubble parameter
Classified under:
Nouns denoting quantities and units of measure
Hypernyms ("Hubble's parameter" is a kind of...):
constant (a number representing a quantity assumed to have a fixed value in a specified mathematical context)
Domain category:
cosmogeny; cosmogony; cosmology (the branch of astrophysics that studies the origin and evolution and structure of the universe)
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