the condition of being covered with glaciers or masses of ice; the result of glacial action;
"Agassiz recognized marks of glaciation all over northern Europe"
the process of covering the earth with glaciers or masses of ice
- These hills were formed by glaciation.
- The Great Lakes basins were excavated by the ice, and many present landforms are the result of this continental glaciation.
- Pleistocene glaciation caused the extinction of many species.