Main Entry: agglutination test Function: noun : any of several tests based on the ability of a specific serum to cause agglutination of a suitable system and used in thediagnosis of infections, the identification of microorganisms, and in blood typing —compare WIDAL TEST
agglutination testn. Any of various tests in which blood serum causes agglutination of bacteria or blood cells of a foreign type, used to determine infection and to identify pathogens and blood types.