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Rosetta stone definition

Ro·setta stone (rō zet′ə)

a tablet of gray granite found in 1799 at Rosetta, a town in Egypt: because it bore parallel inscriptions in Greek and in ancient Egyptian demotic and hieroglyphic characters, it provided a key to the deciphering of ancient Egyptian writing

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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