immunophenotyping
(IH-myoo-noh-FEE-noh-ty-ping)
A process that uses antibodies to identify cells based on the types of antigens or markers on the surface of the cells. This process is used in basic research and to help diagnose diseases, such as specific types of leukemia and lymphoma. Immunophenotyping may also be used to separate cells into different groups based on the markers they have on the surface.