411 REFERENCE · Wiktionary
Arqueano
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
arqueano
Portuguese
Etymology
From pt arqueano, from pt arque -ano, from pt grc ἀρχή.
Proper noun
m
pt geology Archaean geologic eon from about 3,800 to 2,500 million years ago