self-limited vs medical specialty

self-limited is not a noun while medical specialty is a noun.

Word	Noun	Adjective	Verb	Adverb
self-limited	No	Yes	No	No
medical specialty	Yes	No	No	No

self-limited (noun)	medical specialty (noun)
	the branches of medical science that deal with nonsurgical techniques

self-limited (adjective)	medical specialty (adjective)
relating to a disease that tends to run a definite course without treatment