Archaean
/ɑːˈkiːən//ɑrˈkiːən/
词源链
- 英语English
Archaean
词源说明
From Ancient Greek ἀρχαῖος (arkhaîos, “ancient”) (likely via Latin archaeus) + -an.
释义
形容词adjective
- 1(mythology) Of or relating to Arche, the Muse of beginnings in Greek mythology.
- 2(geology) Of, or relating to the geologic eon from about 4,031 to 2,500 million years ago; comprises the Eoarchean, Paleoarchean, Mesoarchean and Neoarchean eras; marked by an atmosphere