protective vs prophylactic

protective is not a noun while prophylactic is a noun.

Word	Noun	Adjective	Verb	Adverb
protective	No	Yes	No	No
prophylactic	Yes	Yes	No	No

protective (noun)	prophylactic (noun)
	contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
	remedy that prevents or slows the course of an illness or disease

protective (adjective)	prophylactic (adjective)
intended or adapted to afford protection of some kind	preventing or contributing to the prevention of disease
showing care	warding off
(usually followed by `of') solicitously caring or mindful	capable of preventing conception or impregnation