Definition of
archean has definitions from the field of geology
1
[ noun ] (geology) the time prior to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life

Synonyms

archaeozoic_era archean_era archeozoic archeozoic_era archaeozoic

Related terms

era Precambrian

2
[ noun ] (geology) the time from 1.5 billion to 5 billion years ago; earth's crust formed; unicellular organisms are earliest forms of life

Synonyms

Archaeozoic Archeozoic_era Archaeozoic_era archaeozoic_aeon archean_aeon archean_eon archeozoic_eon Archeozoic

Related terms

eon era Precambrian

3
[ adjective ] (geology) used of the earliest known rocks

Synonyms

archaean

Related terms

geology early

*

Similar Spelling

archaean archangel arching archine Arcand archness arcanum arrogant Arkansas Arkansan arachnid

To share this definition click "text" (Facebook, Twitter) or "link" (blog, mail) then paste
text link