堰塞湖

yànsèhú
  1. barrier lake; landslide dam
  2. dammed lake

CEDICT

landslide dam; quake lake

Wiktionary

河流因土石崩塌而围堵成的湖泊。

重編國語辭典

河道被堵塞形成的湖泊

維基詞典

Entry Composition

1 堰 yàn weir
2 塞 sè (bound form) to block; to obstruct
3 湖 hú lake