dialectician vs dialectic

dialectician and dialectic both are nouns.

Word	Noun	Adjective	Verb	Adverb
dialectician	Yes	No	No	No
dialectic	Yes	Yes	No	No

dialectician (noun)	dialectic (noun)
a logician skilled in dialectic	any formal system of reasoning that arrives at the truth by the exchange of logical arguments
	a contradiction of ideas that serves as the determining factor in their interaction

dialectician (adjective)	dialectic (adjective)
	of or relating to or employing dialectic