HUBBLE'S PARAMETER

Pronunciation (US):

(GB):

 Dictionary entry overview: What does Hubble's parameter mean? 

• HUBBLE'S PARAMETER (noun)
  The noun HUBBLE'S PARAMETER has 1 sense:

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

  Familiarity information: HUBBLE'S PARAMETER used as a noun is very rare.

 Dictionary entry details 

• HUBBLE'S PARAMETER (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

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

Hubble's constant; Hubble's parameter; Hubble constant; Hubble parameter

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)