A wadi is a low, dry valley. The term wadi is most commonly used in Arabic-speaking parts of the world.

This word wadi is mainly used to describe valleys and dry creeks and riverbeds in the Middle East and North Africa. A wadi might be a stream during the rainy season and a dry ravine during the rest of the year. Wadi comes from the Arabic wādī‎, "river" or "watercourse," and it appears in many place names — for example, Guadalajara comes from the Arabic wādī al-hidjārah, "river of stones."

Definitions of wadi
  1. noun
    gully or streambed in northern Africa and the Middle East that remains dry except during the rainy season
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    type of:
    a deep ditch cut by running water (especially after a prolonged downpour)
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