inoculator vs inoculate

inoculator is a noun but inoculate is not a noun.

Word	Noun	Adjective	Verb	Adverb
inoculator	Yes	No	No	No
inoculate	No	No	Yes	No

inoculator (noun)	inoculate (noun)
a medical practitioner who inoculates people against diseases

inoculator (verb)	inoculate (verb)
	perform vaccinations or produce immunity in by inoculation
	insert a bud for propagation
	impregnate with the virus or germ of a disease in order to render immune
	introduce a microorganism into
	introduce an idea or attitude into the mind of