What does "eoarchean" mean?

Of a geologic era within the Archaean eon from about 4600 to 3600 million years ago; the first single-celled life began at this time.

What is a synonym for "eoarchean"?

Common synonyms include: mesoarchean, neoarchean, paleoarchean.

Pronounced //ˌiːəʊ.ɑːˈkiːən//.

//ˌiːəʊ.ɑːˈkiːən// adj, name

adj, name ·Rare ·Advanced level

Adjective

1
Of a geologic era within the Archaean eon from about 4600 to 3600 million years ago; the first single-celled life began at this time. not-comparable

Proper Noun

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.