The definition of inoculate is to vaccinate someone against a disease.(verb)
When you get your dog a rabies shot, this is an example of a situation where you inoculate your dog against rabies.
See inoculate in Webster's New World College Dictionary
Origin: ME enoculaten < L inoculatus, pp. of inoculare, to engraft a bud in another plant < in-, in + oculus, a bud, eye
See inoculate in American Heritage Dictionary 4
transitive verb in·oc·u·lat·ed, in·oc·u·lat·ing, in·oc·u·lates
Origin: Middle English inoculaten, to graft a scion
Origin: , from Latin inoculāre, inoculāt-
Origin: : in-, in; see in-2
Origin: + oculus, eye, bud; see okw- in Indo-European roots.
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