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Meaning of Prester John

Pres'ter John'

Pronunciation: (pres'tur), [key]
  1. a legendary Christian monk and potentate of the Middle Ages, supposed to have had a kingdom in some remote part of Asia or Africa and associated with fabulous narratives of travel.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.