complement defined in 1951 yearcomplement - complement;
complement - A group of substances, normally present in the blood of vertebrates, which takes an essential part in the lethal action (lysis) of antibody on bacteria and other cells. Activity is rapidly destroyed by heat. Complement often disappears from serum in which an antigen-antibody reaction has occurred: this 'complement-fixation' can be used to test for presence of an antigen or an antibody, and is basis of Wasserman test for syphilis.
near complement in Knolik
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