- Wassermann, Agust von Wassermann - German bacteriologist who developed a diagnostic test for syphilis (1866-1925)
--1 is a kind of bacteriologist
- Wassermann test, Wasserman reaction, Wassermann - a blood test to detect syphilis; a complement fixation test is used to detect antibodies to the syphilis organism treponema; a positive reaction indicates the presence of antibodies and therefore syphilis infection
--2 is a kind of complement fixation test