Dictionary
pre•cip•i•tin•o•gen
Pronunciation: (pri-sip"i-tin'u-jun, -jen"), [key]—
n.
Immunol.an antigen that stimulates precipitin production or that reacts with antibody in an immunoprecipitation reaction.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.