presentational vs presentation

presentational is not a noun while presentation is a noun.

Word	Noun	Adjective	Verb	Adverb
presentational	No	Yes	No	No
presentation	Yes	No	No	No

presentational (noun)	presentation (noun)
	a show or display; the act of presenting something to sight or view
	the activity of formally presenting something (as a prize or reward)
	a visual representation of something
	(obstetrics) position of the fetus in the uterus relative to the birth canal
	the act of making something publicly available; presenting news or other information by broadcasting or printing it
	the act of presenting a proposal
	formally making a person known to another or to the public

presentational (adjective)	presentation (adjective)
of or relating to a presentation (especially in psychology or philosophy)