complement-fixation test


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com·ple·ment-·fix·a·tion test

an immunologic test for determining the presence of a particular antigen or antibody when one of the two is known to be present, based on the fact that complement is "fixed" in the presence of antigen and its specific antibody.
See also: Bordet-Gengou phenomenon.

com·ple·ment-fix·a·tion test

(kom'plĕ-mĕnt-fik-sā'shŭn test)
An immunologic test for determining the presence of a particular antigen or antibody when one of the two is known to be present, based on the fact that complement is "fixed" in the presence of antigen and its specific antibody.