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Definitions of opsonin:
  • noun:   an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes


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Alternative Terms
in-suffix serology immunology phagocytosis thermostable bacterium antibody agglutination-reaction lytic-reaction neutralization precipitin serum enhancer antigen complement-system immunoglobulin-g immunoglobulin-a c3-complement complement-component-4 medical-college-of-georgia medical-subject-headings immune-system adaptive-immune-system innate-immune-system humoral-immunity cell-mediated-immunity anaphylatoxin monoclonal-antibody polyclonal-antibody autoantibody isotype-immunology idiotype superantigen white-blood-cell t-cell basophil-granulocyte eosinophil-granulocyte phagocyte macrophage dendritic-cell reticuloendothelial-system immunity-medical autoimmunity hay-fever immune-tolerance central-tolerance immune-deficiency immunogenetics somatic-hypermutation v-d-j-recombination immunoglobulin-class-switching human-leukocyte-antigen cytokine inflammation bacteriopsonin hemopsonin opsonic fibronectin opsonize myeloperoxidase-deficiency myeloid-3 immunoglobulin-d pathogen-associated-molecular-pattern