taste sensation vs sensation

taste sensation and sensation both are nouns.

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

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

taste sensation: the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus
sensation: an unelaborated elementary awareness of stimulation

Other hypernyms of taste sensation include aesthesis, esthesis, sense datum, sense experience, sense impression.

taste sensation (noun)	sensation (noun)
the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus	an unelaborated elementary awareness of stimulation
	the faculty through which the external world is apprehended
	a general feeling of excitement and heightened interest
	someone who is dazzlingly skilled in any field
	a state of widespread public excitement and interest