リアス海かい岸がん

noun

rias coastline; deeply indented coastline

A geographical term for a coastline with many inlets formed by the submergence of river valleys; often used in descriptions of coastal topography.

• 三さん陸りく地ち方ほうはリアス海かい岸がんで知しられている。

  The Sanriku region is known for its rias coastline.

• リアス海かい岸がんは複ふく雑ざつな地ち形けいのため、津つ波なみの被ひ害がいが大おおきくなりやすい。

  Rias coastlines, due to their complex topography, tend to suffer greater damage from tsunamis.