ˈimyəˌnīz transitive verb
( -ed/-ing/-s )
Usage: see -ize
Etymology: German immunisieren, from immun immune (from French) + -isieren -ize — more at immune
: to make immune
the best known examples … are in semiarid regions, a circumstance that has immunized the scarps from attack by vigorous consequent rivers — C.A.Cotton
especially : to cause to produce antibodies against an antigen or hapten