(adv.) Once in seven years.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). septennially. Retrieved September 23, 2026, from http://smartdefine.org/septennially/definitions/2060545 |
| Chicago | Webster's. 2011. "septennially" http://smartdefine.org/septennially/definitions/2060545 (accessed September 23, 2026). |
| Harvard | Webster's 2011, septennially, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/septennially/definitions/2060545>. |
| MLA | Webster's. "septennially" 28 May 2011. Web. 23 September 2026. <http://smartdefine.org/septennially/definitions/2060545> |