Hubble parameter
— Noun
– English
~ (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
Hubble's parameter
— Noun
– English
~ (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
herb Paris
— Noun
– English
~ European herb with yellow-green flowers resembling and closely related to the trilliums; reputed to be poisonous