hypophysectomize vs surgical operation

hypophysectomize is not a noun while surgical operation is a noun.

Word	Noun	Adjective	Verb	Adverb
hypophysectomize	No	No	Yes	No
surgical operation	Yes	No	No	No

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

hypophysectomize (verb)	surgical operation (verb)
remove the pituitary glands