Dictionary
Archean
adjective Ar·che·an \är-ˈkē-ən\
Definition of ARCHEAN
1
: of, relating to, or being the earliest eon of geological history or the corresponding system of rocks — see geologic time table
See Archean defined for kids Variants of ARCHEAN
Ar·che·an or Ar·chae·an \är-ˈkē-ən\
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Origin of ARCHEAN
Greek archaios
First Known Use: 1872
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