A visible antigen-antibody complex is called a precipitin, and in vitro assays that produce a precipitin are called precipitin reactions.
Most precipitin tests use a polyclonal
antiserum rather than monoclonal antibodies because polyclonal antibodies can bind to mul-tiple epitopes, making lattice formation more
likely.
Precipitin?
Hmm …
Only at the precipice …
Good catch.