English > Precambrian period: 1 sense > noun 1, time| Meaning | The eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago. |
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| Synonyms | Precambrian, Precambrian eon, Precambrian aeon |
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| Instance of | eon, aeon | The longest division of geological time |
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| Parts | Archean, Archean eon, Archean aeon, Archeozoic, Archaeozoic, Archeozoic eon, Archaeozoic aeon | The time from 3,800 million years to 2,500 million years ago |
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| Proterozoic, Proterozoic eon, Proterozoic aeon | From 2,500 to 544 million years ago |
| Spanish | precámbrico |
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| Catalan | precambrià |
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