German: Opsonin
Japanese: オプソニン

Immunology. Any substance of the body that binds to the surface of foreign particles (e.g., bacteria, fungi) and induces their phagocytosis by macrophages and neutrophils. Opsonins are for example antibodies (IgM and IgG) and certain complement fragments (C3b, C3d, and C4b).

Search for publications that include this term