Source : Webster's Revised Unabridged Dictionary (1913)

Centuriator \Cen*tu"ri*a`tor\, Centurist \Cen"tu*rist\, n. [Cf.
   F. centuriateur.]
   An historian who distinguishes time by centuries, esp. one of
   those who wrote the ``Magdeburg Centuries.'' See under
   {Century}. [R.]