wadi

A valley, gully, or streambed in northern Africa and southwest Asia that remains dry except during the rainy season.

A stream that flows through such a channel.

An oasis.

The channel of a watercourse which is dry except in the rainy season; a watercourse; a stream: a term used chiefly in the topography of certain Eastern countries.

A valley, gully, or stream bed in northern Africa and southwest Asia that remains dry except during the rainy season.

gully or streambed in northern Africa and the Middle East that remains dry except during rainy season