(n.) Volcanic ashes from Pozzuoli, in Italy, used in the manufacture of a kind of mortar which hardens under water.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). pozzolana. Retrieved September 27, 2026, from http://smartdefine.org/pozzolana/definitions/2048107 |
| Chicago | Webster's. 2011. "pozzolana" http://smartdefine.org/pozzolana/definitions/2048107 (accessed September 27, 2026). |
| Harvard | Webster's 2011, pozzolana, Smart Define, viewed 27 September, 2026, <http://smartdefine.org/pozzolana/definitions/2048107>. |
| MLA | Webster's. "pozzolana" 27 May 2011. Web. 27 September 2026. <http://smartdefine.org/pozzolana/definitions/2048107> |