n.
A basalt tablet bearing inscriptions in Greek and in Egyptian hieroglyphic and demotic scripts that was discovered in 1799 near Rosetta, a town of northern Egypt in the Nile River delta, and provided the key to the decipherment of Egyptian hieroglyphics.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
