- (a.) Consisting of seventy; also, seventy years old.
- (n.) A septuagenarian.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). septuagenary. Retrieved October 1, 2026, from http://smartdefine.org/septuagenary/definitions/2060577 |
| Chicago | Webster's. 2011. "septuagenary" http://smartdefine.org/septuagenary/definitions/2060577 (accessed October 1, 2026). |
| Harvard | Webster's 2011, septuagenary, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/septuagenary/definitions/2060577>. |
| MLA | Webster's. "septuagenary" 28 May 2011. Web. 1 October 2026. <http://smartdefine.org/septuagenary/definitions/2060577> |