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PRECAMBRIAN
Pronunciation (US): | (GB): |
I. (noun)
Sense 1
Meaning:
The eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
Synonyms:
Precambrian; Precambrian aeon; Precambrian eon; Precambrian period
Classified under:
Nouns denoting time and temporal relations
Instance hypernyms:
aeon; eon (the longest division of geological time)
Meronyms (parts of "Precambrian"):
Proterozoic; Proterozoic aeon; Proterozoic eon (from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms)
Archaeozoic; Archaeozoic aeon; Archean; Archean aeon; Archean eon; Archeozoic; Archeozoic eon (the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life)