ag·glu·tin·o·gen (?g?lo?o-t?n??-j?n, ?-glo?ot?n-)n. An antigen that stimulates the production of a particular agglutinin, such as an antibody.[agglutin(in) + -gen.]ag?glu·tin?o·gen?ic (?g?lo?o-t?n??-g?n??k, ?-glo?ot?n-) adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.agglutinogen (?æ?l??t?n?d??n) n (Biology) an antigen that reacts with or stimulates the formation of a specific agglutinin[C20: from agglutinate + -gen]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014ag?glu?tin?o?gen (?æg l??t?n ? d??n, -?d??n, ??glut n?-) n. an antigen that causes the production of agglutinins. [1900?05] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.