VariousWords beta
Related Terms:
ur
plasmid
eoarchean
ocean
continent
neoarchean
life
paleoarchean
mesoarchean
era
eon
archaea
kenorland
geologic
oxygen
ma
atmosphere
archeovirus
vaalbara
Definitions:
Noun
Definition: Any organism of the domain Archaea.
Adjective
archean
archaean
Definition: of or relating to the earliest known rocks formed during the Precambrian Eon
Definition: Of, or relating to the geologic eon from about 3,800 to 2,500 million years ago; comprises the Eoarchean, Paleoarchean, Mesoarchean and Neoarchean eras; marked by an atmosphere with little oxygen, the formation of the first continents and oceans and the emergence of simple life.