Rubʽ al-Khali
Rubʽ al–Kha·li
geographical name \ˌru̇b-al-ˈkä-lē, Ar -äl-ˈḵä-\Definition of RUBʽ AL-KHALI
desert region S Arabia extending from Nejd S to Hadramawt area ab 250,000 square miles (647,500 square kilometers)
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