immunotransfusion im·mu·no·trans·fu·sion (ĭm'yə-nō-trāns-fy&oomacr;'zhən, ĭ-my&oomacr;'-)
n.
A transfusion of blood from a donor who has been immunized by injections of an antigen prepared from microorganisms isolated from the recipient; the recipient then gains passive immunity from the antibodies formed in the donor.