surgical procedure vs decorticate

surgical procedure is a noun but decorticate is not a noun.

Word	Noun	Adjective	Verb	Adverb
surgical procedure	Yes	No	No	No
decorticate	No	No	Yes	No

surgical procedure (noun)	decorticate (noun)
a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body

surgical procedure (verb)	decorticate (verb)
	remove the cortex of (an organ)
	remove the outer layer of