Library / English Dictionary

    PRECAMBRIAN PERIOD

    Pronunciation (US): Play  (GB): Play

     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 agoplay

    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 period"):

    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)

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