. "0"^^ . "114177542"@en-us . . "0"^^ . . . "an antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes"@en-us . . . "115030264"^^ . "opsonin"@en-us . . . . . . "opsonin"^^ . "15030264-n"^^ .