a. [ Pref. bi- + centenary. ] Of or pertaining to two hundred, esp. to two hundred years;
a. [ L. centenarius, fr. centum a hundred. ]
n.;
a. [ L. ter thirce + E. centenary. ] Including, or relating to, an interval of three hundred years. --
a. [ Pref. tri- + centenary. ] Including, or relating to, the interval of three hundred years; tercentenary. --