(n.) The mother of one's grandfather or grandmother.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). great-grandmother. Retrieved September 29, 2026, from http://smartdefine.org/great-grandmother/definitions/2013598 |
| Chicago | Webster's. 2011. "great-grandmother" http://smartdefine.org/great-grandmother/definitions/2013598 (accessed September 29, 2026). |
| Harvard | Webster's 2011, great-grandmother, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/great-grandmother/definitions/2013598>. |
| MLA | Webster's. "great-grandmother" 27 May 2011. Web. 29 September 2026. <http://smartdefine.org/great-grandmother/definitions/2013598> |