Archean

adjective Ar·che·an \är-ˈkē-ən\
variants: or

Archaean

play \är-ˈkē-ən\

Definition of Archean

  1. 1 :  of, relating to, or being the earliest eon of geological history or the corresponding system of rocks — see geologic time table

  2. 2 :  precambrian

Archean

noun

Origin and Etymology of archean

Greek archaios


First Known Use: 1872



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