- the channel of a watercourse that is dry except during periods of rainfall.
- such a stream or watercourse itself.
- a valley.
"watercourse," 1839, from Arabic wadi "seasonal watercourse," prop. part. of wada "it flowed."
"As has already been indicated, the Luggage seldom shows any sign of emotion, or at least any emotion less extreme than blind rage and hatred, and therefore it is hard to gauge its feelings when it woke up, a few miles outside Al Khali, on its lid in a dried-up wadi with its legs in the air."
- Terry Pratchett, Sourcery