Paleozoic
    adj 1: of or relating to or denoting the Paleozoic era
    n 1: from 544 million to about 230 million years ago [syn:
         Paleozoic, Paleozoic era]

Paleozoic \Pa`le*o*zo"ic\ (p[=a]`l[-e]*[-o]*z[=o]"[i^]k), n.
   (Geol.)
   The Paleozoic time or strata.
   [1913 Webster]

Paleozoic \Pa`le*o*zo"ic\ (p[=a]`l[-e]*[-o]*z[=o]"[i^]k), a.
   [Paleo- + Gr. zwh` life, fr. zh^n to live.] (Geol.)
   Of or pertaining to, or designating, the older division of
   geological time during which life is known to have existed,
   including the Silurian, Devonian, and Carboniferous ages, and
   also to the life or rocks of those ages. See Chart of
   Geology.
   [1913 Webster]