[Arabic roo b ahl khah-lee; English roo b al kah-lee] /Arabic ˌrʊb ɑl ˈxɑ li; English ˌrʊb æl ˈkɑ li/
a desert in S Arabia, N of Hadhramaut and extending from Yemen to Oman. About 250,000 sq. mi. (647,500 sq. km).


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