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nounthe eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
Definition that contains precambrian
- proterozoic formed in the later of two divisions of the Precambrian era
- archean of or relating to the earliest known rocks formed during the Precambrian Eon
- archaeozoic of or belonging to earlier of two divisions of the Precambrian era
- archeozoic of or belonging to earlier of two divisions of the Precambrian era
- archaean of or relating to the earliest known rocks formed during the Precambrian Eon
- craton the part of a continent that is stable and forms the central mass of the continent; typically Precambrian