inoculation
in.oc.u.la.tion \in-.a:k-y*-'la--sh*n\ n 1: the act or process or an instance of inoculating; esp : the intr oduction of a pathogen or antigen into a living organism to stimulate the production of antibodies 2: INOCULUM
Webster's English Dictionaryin.oc.u.la.tion \in-.a:k-y*-'la--sh*n\ n 1: the act or process or an instance of inoculating; esp : the intr oduction of a pathogen or antigen into a living organism to stimulate the production of antibodies 2: INOCULUM