opsonin

== English == === Etymology === From Ancient Greek ὀψωνέω (opsōnéō, “to purchase provisions, to buy victuals, to cater”) +‎ -in. === Pronunciation === IPA(key): /ˈɒpsənɪn/ === Noun === opsonin (plural opsonins) Any chemical produced by the body, including antibodies and complement proteins, that causes a pathogen to be more susceptible to phagocytosis. ==== Derived terms ==== opsonic opsoniferous opsonize ==== Translations ====