wadi(redirected from wadies)
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a watercourse in N Africa and Arabia, dry except in the rainy season
the Arabic name for dry valleys that from time to time fill with streams in the Sahara and on the Arabian Peninsula. A wadi can reach several hundred kilometers in length. Its bed is covered with proluvium.
In the desert regions of southwestern Asia and northern Africa, a stream bed or channel, or a steep-sided ravine, gulley, or valley, which carries water only during the rainy season. Also spelled wady.