antibody excess

an·ti·bod·y ex·cess

in a precipitation test, the presence of antibody in an amount greater than that required to combine with all of the antigen present. See: prozone.

an·ti·bod·y ex·cess

(an'ti-bod-ē eks'es) In a precipitation test, the presence of antibody in an amount greater than that required to combine with all of the antigen present.