* * *
an·ti·gen·ic·i·ty -'nis-ət-ē n, pl -ties the capacity to act as an antigen <a vaccine with reduced \antigenicity>
* * *
an·ti·ge·nic·i·ty (an″tĭ-jə-nisґĭ-te) the property of being able to induce a specific immune response or the degree to which a substance is able to stimulate an immune response. Called also immunogenicity.Medical dictionary. 2011.