taste sensation vs gustatory sensation

taste sensation and gustatory sensation both are nouns.

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

As nouns, taste sensation and gustatory sensation are synonyms defined as:

taste sensation and 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 synonyms of taste sensation include gustatory perception, taste, taste perception.

taste sensation (noun)	gustatory sensation (noun)
the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus	the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus