opsonin
noun
op·so·nin
| \ ˈäp-sə-nən
\
\
Definition of opsonin
: any of various proteins (such as antibodies or complement) that bind to foreign particles and cells (such as bacteria) making them more susceptible to the action of phagocytes
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More Definitions for opsonin
opsonin
noun
op·so·nin
| \ ˈäp-sə-nən
\
\
Medical Definition of opsonin
: any of various proteins (as complement or antibodies) that bind to foreign particles and microorganisms (as bacteria) making them more susceptible to the action of phagocytes