Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of a geologic era within the Archaean eon from about 2800 to 2500 million years ago.
  • proper n. The Neoarchean era.

Etymologies

Sorry, no etymologies found.

Examples

  • And so it goes, from Mesoproterozoic to Neoarchean to the colossal whack of a Mars-sized object into the Earth that would create the Moon, back in the Hadean era.

    Centauri Dreams

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