aromaticity vs aroma

aromaticity and aroma both are nouns.

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

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

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

aromaticity (noun)	aroma (noun)
The property of having an aroma.	any property detected by the olfactory system
	a distinctive odor that is pleasant