noun
- 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 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. (.
- synonyms: Hubble constant, Hubble's parameter, Hubble parameter
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Hubble's constant. Retrieved September 21, 2026, from http://smartdefine.org/hubble%27s_constant/definitions/1243717 |
| Chicago | WordNet. 2010. "Hubble's constant" http://smartdefine.org/hubble%27s_constant/definitions/1243717 (accessed September 21, 2026). |
| Harvard | WordNet 2010, Hubble's constant, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/hubble%27s_constant/definitions/1243717>. |
| MLA | WordNet. "Hubble's constant" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/hubble%27s_constant/definitions/1243717> |