inoculation Syllabification: (in·oc·u·la·tion)Pronunciation: /iˌnäkyəˈlāSHən/Translate inoculation | into French | into German | into Italian | into Spanish Definition of inoculation noun the action of inoculating or of being inoculated; vaccination:inoculation against flu was readily available a course of inoculationsinoculation in other Oxford dictionaries Definition of inoculation in the British & World English dictionary