圏けん谷こく

noun

cirque; corrie; cwm

Geological term for a bowl-shaped, steep-walled mountain basin carved by glacial erosion. Also referred to as カール.

See also: カール

• 圏けん谷こくは氷ひょう河がの侵しん食しょくによって形けい成せいされる。

  A cirque is formed by glacial erosion.