- (n.) Any vital action or activity.
- (n.) A disease of the mind; especially, a functional mental disorder, that is, one unattended with evident organic changes.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). psychosis. Retrieved September 29, 2026, from http://smartdefine.org/psychosis/definitions/2050590 |
| Chicago | Webster's. 2011. "psychosis" http://smartdefine.org/psychosis/definitions/2050590 (accessed September 29, 2026). |
| Harvard | Webster's 2011, psychosis, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/psychosis/definitions/2050590>. |
| MLA | Webster's. "psychosis" 27 May 2011. Web. 29 September 2026. <http://smartdefine.org/psychosis/definitions/2050590> |