eristic vs meliorist

eristic and meliorist both are nouns.

Word	Noun	Adjective	Verb	Adverb
eristic	Yes	Yes	No	No
meliorist	Yes	No	No	No

As nouns, meliorist is a hyponym of eristic; that is, meliorist is a word with a more specific, narrower meaning than eristic:

eristic (noun)	meliorist (noun)
the art of logical disputation (especially if specious)	a disputant who advocates reform
a person who disputes; who is good at or enjoys controversy

eristic (adjective)	meliorist (adjective)
given to disputation for its own sake and often employing specious arguments