what does rub al khali mean in english
Rub' al Khali The Rub' al Khali desert [note 1] (Arabic: الربع الخالي‎, i.e., "the Empty Quarter" in ) is the largest continuous sand desert (erg) in the world,[1] encompassing most of the southern third of the Arabian Peninsula. The desert covers some 650,000 km2 (250,000 sq mi) (the area of long. 44°30′−56°30′E, and lat. 16°30′−23°00′N) including parts of Saudi Arabia, Oman, the United Arab Emirates, and Yemen.[2] It is part of the larger Arabian Desert.