Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
Archean | Yes | No | No | No |
archean | No | Yes | No | No |
Archean (noun) | 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 |
Archean (adjective) | archean (adjective) |
---|---|
of or relating to the earliest known rocks formed during the Precambrian Eon |