coastal landform
Technical term used in geography and earth science to refer to landforms along a coast, such as cliffs, beaches, and sandbars.
The coastal landforms in this area have changed significantly due to erosion.
We learned about coastal landforms in geography class.
地形 is the general term for 'terrain' or 'landform', while 海岸地形 specifically refers to coastal landforms.
Compound of 海岸 (かいがん, 'coast') and 地形 (ちけい, 'landform').