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English Fox - English Dictionary
Meaning of
Proterozoic
in English
Proterozoic
#uncommon
Definitions
Adjective
relating
to
a
geologic
eon
(
2
,
500-541
Ma
)
Proper Noun
a
geologic
eon
marked
by
oxygen
buildup
and
multicellular
life
Compounds / Phrases
Proterozoic era
