archean-eon

Nouns

(n) the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life Archaeozoic, Archaeozoic aeon, Archean, Archean aeon, Archeozoic, Archeozoic eon,

Synonyms

Archaeozoic Archaeozoic aeon Archean Archean aeon Archeozoic Archeozoic eon

Words of close approximity