The Open Dictionary

rift valley

noun

UK/ˈrɪft ˌvæl.i/
US/ˈrɪft ˌvæl.i/

Definitions of rift valley noun

  1. Countable

    A valley with steep sides, created by the movement of the Earth’s tectonic plates.

    • The Great Rift Valley in East Africa is a key area for geological research.

    • The formation of rift valleys is often associated with earthquakes and volcanic activity.

    • Scientists are studying the formation process of the rift valley and its impact on the local ecology.