| a diagnostic test for syphilis using the fixation of a complement by the serum of a syphilitic individual. |
Wassermann reaction Was·ser·mann reaction (wä'sər-mən)
n.
Abbr. WR
A complement-fixing reaction in the Wassermann test.
Wassermann test n.
A diagnostic test for syphilis involving the fixation or inactivation of a complement by an antibody in a blood serum sample.