opsonize

/ˈɑpsənaɪz/
verb
  1. To make a foreign particle (such as a bacterium) more easily consumed by immune cells, typically by coating it with antibodies or other proteins.
    • Certain proteins in the blood opsonize pathogens to speed up the immune response.
    • The body uses antibodies to opsonize invading bacteria.
    • Scientists are working on ways to opsonize cancer cells so the immune system can attack them.