Anti-CEA antibody Meaning of Anti-CEA antibody An antibody against carcinoembryonic antigen (CEA), a protein present on certain types of cancer cells. Also See: Abscess AAP Actinex Amniotic fluid Galvanic Skin Response Aromatherapy massage Agoraphobia ALK gene Ayurvedic medicine AP5346 ALSO SEE: Anti-CD45 monoclonal antibody