| NOUN | time | geological time, geologic time | the time of the physical formation and development of the earth (especially prior to human history) |
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| Meaning | The time of the physical formation and development of the earth (especially prior to human history). | |
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| Synonym | geologic time | |
| Narrower | eon, aeon | The longest division of geological time |
| epoch | A unit of geological time that is a subdivision of a period and is itself divided into ages | |
| era, geological era | A major division of geological time | |
| period, geological period | A unit of geological time during which a system of rocks formed | |
| Broader | time | The continuum of experience in which events pass from the future through the present to the past |
| Spanish | tiempo geológico | |
| Catalan | temps geològic | |
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