agglutination test

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Noun

agglutination test - a blood test used to identify unknown antigens; blood with the unknown antigen is mixed with a known antibody and whether or not agglutination occurs helps to identify the antigen; used in tissue matching and blood grouping and diagnosis of infectionsheterophil test - a blood test to detect heterophil antibodies that agglutinate sheep red blood cells; positive result indicates infectious mononucleosisWidal test, Widal's test - a test for detecting typhoid fever and other salmonella infectionsblood test - a serologic analysis of a sample of blood

agglutination test

agglutination

[ah-gloo″tĭ-na´shun] 1. the action of an agglutinant substance.2. the clumping together in suspension of antigen-bearing cells, microorganisms, or particles in the presence of specific antibodies (agglutinins).

Agglutination reactions. From Applegate, 2000. 3. the process of union of the surfaces of a wound. adj., adj agglutina´tive.cross agglutination the agglutination of particulate antigen by an antibody raised against a different but related antigen; see also agglutination" >group agglutination.group agglutination agglutination, usually to a lower titer, of various members of a group of biologically related organisms by an agglutinin specific for one of that group. For instance, the specific agglutinin of typhoid bacilli may agglutinate other members of the colon-typhoid group, such as Escherichia coli and Salmonella enteritidis.intravascular agglutination clumping of particulate elements within the blood vessels; used conventionally to denote red blood cell agglutination.platelet agglutination the clumping together of platelets owing to the action of agglutinins" >platelet agglutinins; such agglutinins are important in platelet typing.agglutination test any test based on an agglutination reaction, as serologic tests for specific antibodies.