medical specialty vs catatonic

medical specialty is a noun but catatonic is not a noun.

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

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

medical specialty (adjective)	catatonic (adjective)
	characterized by catatonia especially either rigidity or extreme laxness of limbs