agglutinogen
noun
ag·glu·ti·no·gen ə-ˈglü-tə-nə-jən 
: an antigen whose presence results in the formation of an agglutinin
agglutinogenic
ə-ˌglü-tə-nə-ˈje-nik
adjective 
Word History
Etymology
borrowed from German Agglutinogen, from Agglutinine agglutinin + -o- -o- + -gen -gen
First Known Use
1904, in the meaning defined above
Medical Definition
agglutinogen
noun
ag·glu·ti·no·gen ə-ˈglüt-ᵊn-ə-jən
: an antigen whose presence results in the formation of an agglutinin