sense of smell vs olfactory modality

sense of smell and olfactory modality both are nouns.

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

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

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

Other synonyms of sense of smell include olfaction, smell.

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