(n.) A condition of excessive fever; an elevation of temperature in a disease, in excess of the limit usually observed in that disease.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). hyperpyrexia. Retrieved September 20, 2026, from http://smartdefine.org/hyperpyrexia/definitions/2018351 |
| Chicago | Webster's. 2011. "hyperpyrexia" http://smartdefine.org/hyperpyrexia/definitions/2018351 (accessed September 20, 2026). |
| Harvard | Webster's 2011, hyperpyrexia, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/hyperpyrexia/definitions/2018351>. |
| MLA | Webster's. "hyperpyrexia" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/hyperpyrexia/definitions/2018351> |