sapidity vs gustatory sensation

sapidity and gustatory sensation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sapidity	Yes	No	No	No
gustatory sensation	Yes	No	No	No

As nouns, gustatory sensation is a hypernym of sapidity; that is, gustatory sensation is a word with a broader meaning than sapidity:

sapidity: the taste experience when a savoury condiment is taken into the mouth
gustatory sensation: the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus

Other hypernyms of sapidity include gustatory perception, taste, taste perception, taste sensation.

sapidity (noun)	gustatory sensation (noun)
a pleasant flavor	the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus
the taste experience when a savoury condiment is taken into the mouth