汀てい段だん

noun

tidal terrace; berm

Geological term for a flat or gently sloping platform formed by tidal action or wave erosion, often found along rocky coasts.

• この海かい岸がんには、波なみの浸しん食しょくでできた汀てい段だんが見みられる。

  On this coast, you can see a tidal terrace formed by wave erosion.