noun
- United States writer whose novels argued for social reform (1878-1968. ).
- synonyms: Sinclair, Upton Beall Sinclair
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Upton Sinclair. Retrieved September 23, 2026, from http://smartdefine.org/upton_sinclair/definitions/1318495 |
| Chicago | WordNet. 2010. "Upton Sinclair" http://smartdefine.org/upton_sinclair/definitions/1318495 (accessed September 23, 2026). |
| Harvard | WordNet 2010, Upton Sinclair, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/upton_sinclair/definitions/1318495>. |
| MLA | WordNet. "Upton Sinclair" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/upton_sinclair/definitions/1318495> |