SkyfireDict

hubble's parameter   (TTS Sound)

The noun hubble's parameter has 1 sense

• Hubble's constant, Hubble constant, Hubble's parameter, 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)