sensation vs sense datum

sensation and sense datum both are nouns.

Word	Noun	Adjective	Verb	Adverb
sensation	Yes	No	No	No
sense datum	Yes	No	No	No

As nouns, sensation and sense datum are synonyms defined as:

sensation and sense datum: an unelaborated elementary awareness of stimulation

Other synonyms of sensation include aesthesis, esthesis, sense experience, sense impression.

sensation (noun)	sense datum (noun)
an unelaborated elementary awareness of stimulation	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