| 1. | a desert in Egypt between the Nile valley and the Red Sea. ab. 80,000 sq. mi. (207,000 sq. km). |
| 2. | the desert region in the N part of the Arabian peninsula. |
| Arabian Desert or Eastern Desert A desert of eastern Egypt between the Nile Valley and the Red Sea. Porphyry, granite, and sandstone found here have been used as building materials since ancient times. |