Precambrian period

pre·camb·rian·period

uncommon

noun

the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago

Synonyms

prebend prebendary Precambrian Precambrian aeon Precambrian eon precancerous precarious precariously precariousness precast

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