relative density vs denseness

relative density and denseness both are nouns.

Word	Noun	Adjective	Verb	Adverb
relative density	Yes	No	No	No
denseness	Yes	No	No	No

As nouns, denseness is a hypernym of relative density; that is, denseness is a word with a broader meaning than relative density:

relative density: the ratio of the density of something to the density of a standard
denseness: the amount per unit size

Other hypernyms of relative density include density.

relative density (noun)	denseness (noun)
the ratio of the density of something to the density of a standard	the amount per unit size
	the spatial property of being crowded together
	the quality of being mentally slow and limited