- (n.) That philosophy or doctrine which recognizes or deals only with externals or objects of sense perception; positivism; phenomenalism.
- (n.) The quality of being manifest to the senses; external acts or appearances; regard for externals.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). externalism. Retrieved September 20, 2026, from http://smartdefine.org/externalism/definitions/2006362 |
| Chicago | Webster's. 2011. "externalism" http://smartdefine.org/externalism/definitions/2006362 (accessed September 20, 2026). |
| Harvard | Webster's 2011, externalism, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/externalism/definitions/2006362>. |
| MLA | Webster's. "externalism" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/externalism/definitions/2006362> |