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Thesaurus: archean

of or relating to the earliest known rocks formed during the Precambrian Eon

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earliestdefinitionformeddefinitioneondefinitionknowndefinitionmilliondefinitionPrecambriandefinitionrelatingdefinitionrocksdefinitionyearsdefinitionagodefinitioncrustdefinitionformsdefinitionlifedefinitionorganismsdefinitiontimedefinitionunicellulardefinitionarchebiosisfamilyarchedfamilyarchegoniafamilyarchegonialfamilyarchegoniatefamilyarchegoniumfamilyarchegonyfamilyarcheifamilyarchelogyfamilyarchencephalafamilyarchenemyfamilyarchentericfamily

Definitions

  1. adj. of or relating to the earliest known rocks formed during the Precambrian Eon
  2. 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 s. of or relating to the earliest known rocks formed during the Precambrian Eon