Word:

Archean eon

Noun1.Archean 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
aeon, Archaeozoic, Archaeozoic aeon, Archean, Archean aeon, Archeozoic, Archeozoic eon, eon, Precambrian, Precambrian aeon, Precambrian eon, Precambrian period
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Archbutler
Archchamberlain
Archchancellor
Archchemic
Archdeacon
Archdeaconry
Archdeaconship
archdiocesan
Archdiocese
Archducal
Archduchess
Archduchy
Archduke
Archdukedom
Archean
Archean aeon
-- Archean eon --
Archebiosis
Arched
Archegonial
archegoniate
Archegonium
Archegony
Archelogy
Archencephala
Archenemy
Archenteric
Archenteron
archeobacteria
archeologic
archeological
archeological remains
archeological site
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