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Precipitin
(redirected from precipitin reaction, precipitin test)

    Also found in: Dictionary/thesaurus, Wikipedia 0.01 sec.
precipitin /pre·cip·i·tin/ (-sip´it-in) an antibody to soluble antigen that specifically aggregates the macromolecular antigen in vivo or in vitro to give a visible precipitate.
pre·cip·i·tin (pr-sp-tn)
n.
An antibody that under suitable conditions combines with and causes a specific soluble antigen to precipitate.
Precipitin
An antibody in blood that combines with an antigen to form a solid that separates from the rest of the blood.
Mentioned in: Allergic Bronchopulmonary Aspergillosis
precipitin
an antibody to soluble antigen that specifically aggregates the antigen in vivo or in vitro to give a visible precipitate.
precipitin curve
a plot showing the amount of antibody precipitated with increasing amounts of antigen added in a precipitin reaction.
precipitin reaction, precipitin test
a reaction involving the specific precipitation of an antigen in solution by mixing with a specific antiserum in the presence of electrolytes. See also lattice theory.
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