Definition of opsonize in US English:

opsonize

verb

[with object]Medicine
  • Make (a foreign cell) more susceptible to phagocytosis.

    • ‘Three-micrometer latex beads were opsonized with human immunoglobulin G.’
    • ‘It opsonised GAS with an average percentage opsonisation of 46 and 50 per cent, respectively.’
    • ‘The percentage of GAS opsonized was determined by counting the number of colonies growing after incubation with test immune sera and comparing this with the number of colonies growing after incubation with control sera.’
    • ‘In humans and animals only M protein typespecific antibodies have the capacity to opsonize streptococci and to override the anti-phagocytic property of M protein.’
    • ‘The role of B-cells in the immune response is to release antibodies that may opsonize a particular cell and assist T-cells in destruction of that cell.’

Pronunciation

opsonize

/ˈäpsəˌnīz/