Archean

adjective

Ar·​che·​an är-ˈkē-ən How to pronounce Archean (audio)
variants or Archaean
1
: of, relating to, or being the earliest eon of geologic history or the corresponding system of rocks see Geologic Time Table
2
Archean noun

Word History

Etymology

Greek archaios

First Known Use

1872, in the meaning defined at sense 1

Time Traveler
The first known use of Archean was in 1872

Dictionary Entries Near Archean

Cite this Entry

“Archean.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Archean. Accessed 23 Jun. 2024.

Kids Definition

Archean

adjective
Ar·​che·​an
variants or Archaean
: of, relating to, or being the earliest eon of geological history or the corresponding system of rocks see geologic time
Archean noun
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