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Meaning of Rhaetia

Rhae•ti•a

Pronunciation: (rē'shē-u, -shu), [key]
— n.
  1. an ancient Roman province in central Europe, comprising what is now E Switzerland and a part of the Tyrol: later extended to the Danube.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.