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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 Pa·leo·zo·ic /ˌpeliəˈzoɪk, ||ˌpæ-/
 (a.)古生代的古生代

From: Webster's Revised Unabridged Dictionary (1913)

 Pa·le·o·zo·ic a.  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.

From: Webster's Revised Unabridged Dictionary (1913)

 Pa·le·o·zo·ic n. Geol. The Paleozoic time or strata.
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From: WordNet (r) 2.0

 Paleozoic
      n : from 544 million to about 230 million years ago [syn: Paleozoic
           era]