1.VerbTo introduce an antigenic substance or vaccine into something (e.g. the body) or someone, such as to produce immunity to a specific disease. .mw-parser-output .defdate{font-size:smaller}
2.VerbTo safeguard or protect something as if by inoculation.
"(Can we add an example for this sense?)"
3.VerbTo add one substance to another.
"The culture medium was inoculated with selenium to investigate the rate of uptake."
4.VerbTo graft by inserting buds.
"to inoculate the bud of one tree or plant into another; to inoculate a tree"
5.VerbTo introduce into the mind (used especially of harmful ideas or principles).