planography vs planographic

planography is a noun but planographic is not a noun.

Word	Noun	Adjective	Verb	Adverb
planography	Yes	No	No	No
planographic	No	Yes	No	No

planography (noun)	planographic (noun)
the process of printing from a surface on which the printing areas are not raised but are ink-receptive (as opposed to ink repellent)

planography (adjective)	planographic (adjective)
	of or relating to or involving planography