1. 
   Rub al Khali
   Rub al Khali (rOOb äl khä'lē) [Arab.,=empty quarter], great desert of the Arabian peninsula, c.225,000 sq mi (582,750 sq km); one of the largest sand deserts in the world. The desert occupies much of the southern interior of the peninsula, from the highlands of the Nejd (to the n...
   Found op http://www.infoplease.com/ce6/world/A0842602.html
   
   
2. 
   Rub al-Khali
   Ar Rimsal noun a desert in southern Saudi Arabia
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=Rub%20al-Khali
   
   
3. 
   Rub` al Khali
   The Rub` al Khali (الربع الخالي) or Empty Quarter is one of the largest sand deserts in the world, encompassing most of the southern third of the Arabian Peninsula, including most of Saudi Arabia and areas of Oman, the United Arab Emirates, and Yemen. The desert covers some {convert|6500...
   Found op http://en.wikipedia.org/wiki/Rub`_al_Khali
   
   
4. 
   Rub` al-Khali
   vast desert in the southern Arabian Peninsula, covering about 250,000 square miles (650,000 square km) in a structural basin lying mainly in ... [6 related articles]
   Found op http://www.britannica.com/eb/a-z/r/75
   
   
5. 
   Rub' al Khali
   Vast sandy desert in southern Saudi Arabia and Yemen; area 650,000 sq km/250,000 sq mi. In 1930–31 the British explorer Bertram Thomas became the first European to cross it
   Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0014839.html
   
   

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