(redirected from precipitin reaction)
Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia.
Related to precipitin reaction: precipitin test


An antibody that reacts with a specific soluble antigen to produce a precipitate.


(Biochemistry) immunol an antibody that causes precipitation when mixed with its specific antigen


(prɪˈsɪp ɪ tɪn)

an antibody that reacts with an antigen to form a precipitate.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.precipitin - an antibody that causes precipitation when it unites with its antigen
antibody - any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
Mentioned in ?
References in periodicals archive ?
Such algorithms may include monitoring the initial rate of the precipitin reaction as well as a separate prereaction step.
In fact, our patient showed definite positive precipitins to cockatiel antigen, as well as a definite positive reaction to pigeon sera and very weakly positive precipitin reactions to droppings extracts of pigeons, canaries, and parakeets.