Search Result：Hubble constant
hubble constant 
(TTS Sound)
(TTS Sound)Overview of noun hubble_constant
The noun hubble 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)