水無川みずなしがわ

noun

dry river; wadi; arroyo

Refers to a riverbed that is normally dry except after heavy rain; often used for seasonal streams in arid regions.

• この水無川みずなしがわは、大おお雨あめのときだけ水みずが流ながれる。

  This dry river only flows when there is heavy rain.

• 砂さ漠ばくの水無川みずなしがわをワジと呼よぶ。

  A dry river in the desert is called a wadi.