Search Result：Hubble's constant
hubble's constant 
(TTS Sound)
(TTS Sound)Overview of noun hubble's_constant
The noun hubble's constant 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)