01 a. Relating to, or associated with, the commemoration of an event that happened a hundred years before; as, a centennial ode.
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1.
Relating to, or associated with, the commemoration of an event that happened a hundred years before; as, a centennial ode.
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2.
Happening once in a hundred years; as, centennial jubilee; a centennial celebration.
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3.
Lasting or aged a hundred years.“That opened through long lines Of sacred ilex and centennial pines.” — Longfellow.