catatonic vs medical specialty

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

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

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

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