name of a modern nation (since 1960) and ancient kingdom of northwest Africa, also the name of a Roman province corresponding to parts of modern Morocco and Algeria, from Latin Mauretania, from Greek Mauritania, "the country of the Mauri" (Greek Mauroi, singular Mauros; see Moor). Related: Mauritanian.

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Definitions of Mauritania from WordNet

Mauritania (n.)
a country in northwestern Africa with a provisional military government; achieved independence from France in 1960; largely western Sahara Desert;
Synonyms: Islamic Republic of Mauritania / Mauritanie / Muritaniya