Definition of prozone in English:

prozone

Line breaks: pro|zone
Pronunciation: /ˈprəʊzəʊn
 
/

noun

[mass noun] Medicine
(In testing for antigens) the range of relative quantities of precipitin (or agglutinin) and antigen within which any precipitation (or agglutination) is inhibited by the predominance of one component.
More example sentences
  • In addition, these tests may show a ‘prozone’ phenomenon in which large amounts of antibody block the antibody-antigen reaction, causing a false-negative test in the undiluted sample.
  • However, highly concentrated antibodies may result in a prozone effect, leading to decreased intensity of staining.

Origin

early 20th century: from pro-2 'before' + (agglutination) zone.

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