Archean — synonyms, definition
1. Archean (Adjective) US
1 definition
Archean (Adjective) — (geology) of or relating to the earliest known rocks formed during the Precambrian Eon.
2. Archean (Noun) US
7 synonyms
Archaean Archaeozoic Archaeozoic aeon Archean aeon Archean eon Archeozoic Archeozoic eon
1 definition
Archean (Noun) — The time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life.
2 types of
aeon eon
4 parts of
Precambrian Precambrian aeon Precambrian eon Precambrian period