aroma vs olfactory property

aroma and olfactory property both are nouns.

Word	Noun	Adjective	Verb	Adverb
aroma	Yes	No	No	No
olfactory property	Yes	No	No	No

As nouns, aroma and olfactory property are synonyms defined as:

aroma and olfactory property: any property detected by the olfactory system

Other synonyms of aroma include odor, odour, scent, smell.

aroma (noun)	olfactory property (noun)
any property detected by the olfactory system	any property detected by the olfactory system
a distinctive odor that is pleasant