(n.) The stone forming a threshold.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). doorstone. Retrieved September 20, 2026, from http://smartdefine.org/doorstone/definitions/2000031 |
| Chicago | Webster's. 2011. "doorstone" http://smartdefine.org/doorstone/definitions/2000031 (accessed September 20, 2026). |
| Harvard | Webster's 2011, doorstone, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/doorstone/definitions/2000031>. |
| MLA | Webster's. "doorstone" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/doorstone/definitions/2000031> |