aromaticity vs odour

aromaticity and odour both are nouns.

Word	Noun	Adjective	Verb	Adverb
aromaticity	Yes	No	No	No
odour	Yes	No	No	No

As nouns, odour is a hypernym of aromaticity; that is, odour is a word with a broader meaning than aromaticity:

Other hypernyms of aromaticity include aroma, odor, olfactory property, scent, smell.

aromaticity (noun)	odour (noun)
The property of having an aroma.	any property detected by the olfactory system
	the sensation that results when olfactory receptors in the nose are stimulated by particular chemicals in gaseous form