Treponema pallidum immobilization test

Treponema pal·li·dum immobilization test

noun \-ˈpal-əd-əm-\

Definition of TREPONEMA PALLIDUM IMMOBILIZATION TEST

: a serological test for syphilis in which a solution containing the living causative spirochete (Treponema pallidum) is combined with serum in the presence of complement with immobilization of the active spirochetes indicating a positive result—abbreviation TPI