Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun archeozoic_eon

1 sense of archeozoic eon

Sense 1
Archean, Archean eon, Archean aeon, Archeozoic, Archaeozoic, Archeozoic eon, Archaeozoic aeon -- (the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life)
       INSTANCE OF=> eon, aeon -- (the longest division of geological time)

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