olfactory property vs aroma

olfactory property and aroma both are nouns.

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

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

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

Other synonyms of olfactory property include odor, odour, scent, smell.

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