topical vs medical specialty

topical is not a noun while medical specialty is a noun.

Word	Noun	Adjective	Verb	Adverb
topical	No	Yes	No	No
medical specialty	Yes	No	No	No

topical (noun)	medical specialty (noun)
	the branches of medical science that deal with nonsurgical techniques

topical (adjective)	medical specialty (adjective)
of or relating to or arranged by topics
of interest at the present time
pertaining to the surface of a body part