(a.) 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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). paleozoic. Retrieved September 25, 2026, from http://smartdefine.org/paleozoic/definitions/2041358 |
| Chicago | Webster's. 2011. "paleozoic" http://smartdefine.org/paleozoic/definitions/2041358 (accessed September 25, 2026). |
| Harvard | Webster's 2011, paleozoic, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/paleozoic/definitions/2041358>. |
| MLA | Webster's. "paleozoic" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/paleozoic/definitions/2041358> |