antiserum

noun

Etymology: Etymology tree English anti- Proto-Indo-European *ser- Proto-Indo-European *sér-o-der. Proto-Italic *serom Latin serumder. English serum English antiserum From anti- + serum.

1. A serum prepared from human or animal sources containing antibodies able to counter certain diseases or toxins.

   “The polyclonal antibodies that Protherics had developed were based on the long established process for making antiserum by raising and extracting antibodies from animals exposed to antigens, rather than through monoclonal antibody technology; […]”