Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A diagnostic test for syphilis involving the fixation or inactivation of a complement by an antibody in a blood serum sample.

Etymologies

After August von Wassermann (1866-1925), German bacteriologist.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • A tweet-only application (meaning you can't read other people's tweets, just post quickly) that distinguishes itself from the other minimalist one-way apps by adding GPS (with a link to your position on Google maps) and pictures to the equation.

    Gizmodo

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