- (n.) A person ninety years old.
- (n.) A person ninety years old.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). nonagenarian. Retrieved September 29, 2026, from http://smartdefine.org/nonagenarian/definitions/2037105 |
| Chicago | Webster's. 2011. "nonagenarian" http://smartdefine.org/nonagenarian/definitions/2037105 (accessed September 29, 2026). |
| Harvard | Webster's 2011, nonagenarian, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/nonagenarian/definitions/2037105>. |
| MLA | Webster's. "nonagenarian" 27 May 2011. Web. 29 September 2026. <http://smartdefine.org/nonagenarian/definitions/2037105> |