<p><strong>Verb</strong></p><ul><li>(used with object) vaccinated, vaccinating.</li><li>to inoculate with the vaccine of cowpox so as to render the subject immune to smallpox.</li><li>to inoculate with the modified virus of any of various other diseases, as a preventive measure.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object) vaccinated, vaccinating.</li><li>to perform or practice vaccination.</li></ul><p><strong>End of Response</strong></p>