Durdur (ingiriis: tributary) waa biyo mareen ama webi oo dhex gasha webi ka weyn. Durdur ma dhex gasho badweyn ama laas ama bad. Durdurka dunida ugu weyn waa durdurka Irtysh ee dhex gasha webiga Ob ee ku yaala wadanka Ruushka. Maax ahaan, durdurka dunida ugu weyne waa durdurka Madeira.[1]

Tixraac wax ka badal

  1. Krebs, Robert E. (2003). The Basics of Earth Science. Greenwood Publishing Group. ISBN 978-0-313-31930-3.

Sawirro wax ka badal