English

Proper noun

Archæozoic

1. Obsolete form of Archaeozoic.

Adjective

Archæozoic ‎(not comparable)

1. Obsolete form of Archaeozoic.
   • 1922, John Arthur Thomson, The Outline of Science, Volume I, page 90:

     It is an astounding fact that at least half of geological time (the Archæozoic and Proterozoic eras) passed before there were living creatures with parts sufficiently hard to form fossils.