Archaeozoic

[ahr-kee-uh-zoh-ik] /ˌɑr ki əˈzoʊ ɪk/
adjective, noun, Geology
British Dictionary definitions for Archaeozoic

Archaeozoic

/ˌɑːkɪəˈzəʊɪk/
adjective
1.
a former word for Archaean
Archaeozoic in Science
Archaeozoic
  (är'kē-ə-zō'ĭk)   
Another spelling of Archeozoic.
Archeozoic also Archaeozoic
  (är'kē-ə-zō'ĭk)   
See Archean.