- Having the leaves of a pentamerous calyx or corolla so imbricated that two are exterior, two are interior, and the other has one edge exterior and one interior; as, quincuncial aestivation.
- Having the form of a quincunx.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Quincuncial. Retrieved September 21, 2026, from http://smartdefine.org/quincuncial/definitions/2051970 |
| Chicago | Webster's. 2011. "Quincuncial" http://smartdefine.org/quincuncial/definitions/2051970 (accessed September 21, 2026). |
| Harvard | Webster's 2011, Quincuncial, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/quincuncial/definitions/2051970>. |
| MLA | Webster's. "Quincuncial" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/quincuncial/definitions/2051970> |