1882, in the meaning defined at transitive sense
earlier, "to inoculate with fluid from a cowpox pustule," back-formation from vaccination; in later extended sense, in part borrowed from French vacciner, verbal derivative of vaccin vaccine
vaccinate
verbvaccinate
verbvaccinate
verb(Entry 1 of 2)
transitive verb
intransitive verb
vaccinate
nounMedical Definition of vaccinate (Entry 2 of 2)