Treponema pallidum immobilization test
noun
Treponema pal·li·dum immobilization test
| \ -ˈpal-əd-əm-
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Medical 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