noun see: oligopsony Date: 1903 any of various proteins (as antibodies or complement) that bind to foreign particles and cells (as bacteria) making them more susceptible to the action of phagocytes
OPSONIN
Meaning of OPSONIN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012