- (n.) The science of real as distinguished from phenomenal being; ontology; also, the science of being, with reference to its abstract and universal conditions, as distinguished from the science of determined or concrete being; the science of the conceptions and relations which are necessarily implied as true of every kind of being; phylosophy in general; first principles or the science of first principles.
- (n.) Hence: The scientific knowledge of mental phenomena; mental philosophy; psychology.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). metaphysics. Retrieved September 20, 2026, from http://smartdefine.org/metaphysics/definitions/2032267 |
| Chicago | Webster's. 2011. "metaphysics" http://smartdefine.org/metaphysics/definitions/2032267 (accessed September 20, 2026). |
| Harvard | Webster's 2011, metaphysics, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/metaphysics/definitions/2032267>. |
| MLA | Webster's. "metaphysics" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/metaphysics/definitions/2032267> |