former name of southern Spain, from Spanish, from al Andalus, Arabic name for the entire peninsula, which probably is from Late Latin *Vandalicia "the country of the Vandals" (see vandal) in reference to the Germanic tribe that, with others, overran the Western Empire 3c.-4c., and for a time settled in southern Spain. See vandal. Related: Andalusian.

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Definitions of Andalusia from WordNet

Andalusia (n.)
a region in southern Spain on the Atlantic and the Mediterranean; formerly a center of Moorish civilization;
Synonyms: Andalucia