(n.) The quality or state of being periodical or regularly recurrent; as, the periodicity in the vital phenomena of plants.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). periodicity. Retrieved September 25, 2026, from http://smartdefine.org/periodicity/definitions/2043868 |
| Chicago | Webster's. 2011. "periodicity" http://smartdefine.org/periodicity/definitions/2043868 (accessed September 25, 2026). |
| Harvard | Webster's 2011, periodicity, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/periodicity/definitions/2043868>. |
| MLA | Webster's. "periodicity" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/periodicity/definitions/2043868> |