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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
Archean eon
Noun
1.
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
Synonyms:
Archaeozoic
,
Archaeozoic aeon
,
Archean
,
Archean aeon
,
Archeozoic
,
Archeozoic eon
aeon
,
Archaeozoic
,
Archaeozoic
aeon
,
Archean
,
Archean
aeon
,
Archeozoic
,
Archeozoic
eon
,
eon
,
Precambrian
,
Precambrian
aeon
,
Precambrian
eon
,
Precambrian
period
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