Definition: Immunoelectrophoresis in which a second electrophoretic transport is performed on the initially separated antigen fragments into an antibody-containing medium in a direction perpendicular to the first electrophoresis.
NIM; do not confuse X ref IMMUNOELECTROPHORESIS, CROSSED with IMMUNOELECTROPHORESIS, CROSSOVER see COUNTERIMMUNOELECTROPHORESIS; DF: IMMUNOELECTROPHORESIS 2D