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Rubʿ al Khali

[Arabic roo b ahl khah-lee; English roo b al kah-lee]
noun
  1. 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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Also called Ar Rimal, Dahna, Empty Quarter, Great Sandy Desert.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018