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vaccinate (v.)

1803, "to inoculate with a vaccine," originally with cowpox for the purpose of procuring immunity from smallpox, back-formation from vaccination. Related: Vaccinated; vaccinating.

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Definitions of vaccinate from WordNet

vaccinate (v.)
perform vaccinations or produce immunity in by inoculation;
We vaccinate against scarlet fever
The nurse vaccinated the children in the school
Synonyms: immunize / immunise / inoculate
From wordnet.princeton.edu