| NOUN | time | glacial epoch, ice age, glacial period | any period of time during which glaciers covered a large part of the earth's surface |
|---|---|---|---|
| time | Glacial epoch, Pleistocene, Pleistocene epoch | from two million to 11 thousand years ago |
| Meaning | Any period of time during which glaciers covered a large part of the earth's surface. | |
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| Synonyms | ice age, glacial period | |
| Part of | prehistory, prehistoric culture | The time during the development of human culture before the appearance of the written word |
| Broader | period, geological period | A unit of geological time during which a system of rocks formed |
| Meaning | From two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution. | |
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| Synonyms | Pleistocene, Pleistocene epoch | |
| Instance of | epoch | A unit of geological time that is a subdivision of a period and is itself divided into ages |
| Part of | Quaternary, Quaternary period, Age of Man | last 2 million years |