\Cen"te*na*ry\, a. [L. centenarius, fr. centum a hundred.] 1. Relating to, or consisting of, a hundred. 2. Occurring once in every hundred years; centennial. ``Centenary solemnities.'' --Fuller.
\Cen"te*na*ry\, n.; pl. {Centenaries}. 1. The aggregate of a hundred single things; specifically, a century. ``Every centenary of years.'' --Hakewill. 2. A commemoration or celebration of an event which occurred a hundred years before.