(n.) The act of upheaving or the state of being upheaved; especially, an elevation of a portion of the earth's crust.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). upheaval. Retrieved September 22, 2026, from http://smartdefine.org/upheaval/definitions/2078079 |
| Chicago | Webster's. 2011. "upheaval" http://smartdefine.org/upheaval/definitions/2078079 (accessed September 22, 2026). |
| Harvard | Webster's 2011, upheaval, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/upheaval/definitions/2078079>. |
| MLA | Webster's. "upheaval" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/upheaval/definitions/2078079> |