[1] : The Collaborative International Dictionary of English v.0.48

paleozoic \pa`leozo"ic\ p=a`l-e-oz=o"i^k, n.
   geol.
   the paleozoic time or strata.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

paleozoic \pa`leozo"ic\ p=a`l-e-oz=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
see also:
geology 

[3] : WordNet (r) 2.0

paleozoic
     n : from 544 million to about 230 million years ago syn: paleozoic
         era
see also:
paleozoic era 

Paleozoic >> P Words
Paleozoic, definition of term: Paleozoic
paleozoic_pag1.html

Paleozoic Era >> P Words
Paleozoic Era, definition of term: Paleozoic Era
paleozoic+era_pag1.html