Pronunciation: (kom'plu-munt-fik-sā'shun), [key] Med.
a test for diagnosing an infectious disease by detecting the presence of antibody in the blood, based on the fixing of a known quantity of complement to the antigen being tested and the specific antibody that combines with it. Abbr.: CFT
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.