olfactory modality vs sense of smell

olfactory modality and sense of smell both are nouns.

Word	Noun	Adjective	Verb	Adverb
olfactory modality	Yes	No	No	No
sense of smell	Yes	No	No	No

As nouns, olfactory modality and sense of smell are synonyms defined as:

olfactory modality and sense of smell: the faculty that enables us to distinguish scents

Other synonyms of olfactory modality include olfaction, smell.

olfactory modality (noun)	sense of smell (noun)
the faculty that enables us to distinguish scents	the faculty that enables us to distinguish scents