im·mu·no·fluo·res·cence 
(ĭm′yə-nō-fl-rĕsəns, -flô-, -flō-)
(ĭm′yə-nō-fl-rĕsəns, -flô-, -flō-)n.
Any of various techniques that use antibodies chemically linked to a fluorescent dye to identify or quantify antigens in a tissue sample.
im′mu·no·fluo·rescent adj.