| Noun | 1. | glaciation - 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"environmental condition - the state of the environment |
| 2. | glaciation - the process of covering the earth with glaciers or masses of ice geologic process, geological process - (geology) a natural process whereby geological features are modified Riss glaciation - the next-to-last Pleistocene glaciation in the Alps and the deposits laid down at that time Saale glaciation - the next-to-last Pleistocene glaciation in northern Europe and the deposits laid down at that time Wolstonian glaciation - the next-to-last Pleistocene glaciation in Britain and the deposits laid down at that time |