agglutination defined in 1939 yearagglutination - Agglutination (Lat. agglutinare, to glue);
agglutination - Term used in philology and bacteriology. Words or roots combined into compound terms are said to be agglutinated. Turkish, Mongolian, Japanese, and other languages are types of what are called agglutinative languages. In cases of infection by certain bacteria the blood serum has the power of producing defensive substances. Among these are the agglutinins which cause the infecting bacteria to adhere to one another in small masses or clumps and so deprive the organisms of their power of movement. While agglutination does not protect the body against disease, the reaction is valuable in the diagnosis of typhoid and para-typhoid fever, food poisoning, intestinal infections, cerebro-spinal fever, and other bacterial infections. In typhoid fever, for example, a drop of diluted blood serum from the patient is added to a drop of a fluid culture of the typhoid bacillus. Examined under the microscope, the bacilli, which at first are widely distributed and moving freely, are seen an hour later gathered together in clumps, because of the action of the agglutinins produced by the typhoid infection. Agglutinins are specific for a particular infection; thus the serum of a typhoid patient will not agglutinate the organisms of cholera. See Bacteriology.
agglutination defined in 1951 yearagglutination - agglutination;
agglutination - Sticking together, e.g. of bacteria (one of the effects of antibodies); or of red blood corpuscles (as when blood of incompatible blood groups is mixed).
near agglutination in Knolik
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