| opson | 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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| opson | process whereby opsonins make an invading microorganism more susceptible to phagocytosis |
| opson | process whereby opsonins make an invading microorganism more susceptible to phagocytosis |
| opson | make (cells) more susceptible to the action of phagocytes |