esker
/ˈeskə(r)/noun
- Geology a long ridge of gravel and other sediment, typically having a winding course, deposited by meltwater from a retreating glacier or ice sheet【地质】蛇（形）丘。
词源
mid 19th cent.: from Irish eiscir.
| 单词 | esker |
| 释义 | esker/ˈeskə(r)/noun
词源 mid 19th cent.: from Irish eiscir. |
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