drumlin
/ˈdrʌmlɪn/
noun
- A long, narrow hill shaped like an upside-down boat, formed by the movement of a glacier.
- Hikers climbed the gentle slope of the drumlin to enjoy the view of the valley.
- Geologists studied the drumlin to learn about the direction of the glacier's flow.
- The farmer's field was dotted with drumlins left behind by ancient ice sheets.