• synonyms

complement fixation


noun Immunology.

the binding of complement to immune complexes or to certain foreign surfaces, as those of invading microorganisms.


“Compliment” vs. “Complement”: How To Pick The Right WordCompliment and complement are commonly confused terms because they're pronounced alike and originally shared some meanings ...

Nearby words

complected, complection, complement, complement binding assay, complement clause, complement fixation, complement fixation test, complement protein, complement reaction, complement unit, complement-fixation test

Origin of complement fixation

First recorded in 1905–10 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for complement fixation

  • The complement-fixation reaction will often clear up an apparently obscure diagnosis.

    Arteriosclerosis and Hypertension:|Louis Marshall Warfield
  • Consequently what is sought in the complement-fixation test is a specific amboceptor.

    The Fundamentals of Bacteriology|Charles Bradfield Morrey

Medicine definitions for complement fixation

complement fixation


The binding of active complement to a specific antigen-antibody pair used in diagnostic tests, such as the Wasserman test, to detect the presence of a specific antigen or antibody.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.