noun
- A river that rises in Pennsylvania and flows north into New York and then back south through Pennsylvania again to join the Monongahela River at Pittsburgh which is the beginning of the Ohio River.
- synonyms: Allegheny River
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). allegheny. Retrieved September 24, 2026, from http://smartdefine.org/allegheny/definitions/1324318 |
| Chicago | WordNet. 2010. "allegheny" http://smartdefine.org/allegheny/definitions/1324318 (accessed September 24, 2026). |
| Harvard | WordNet 2010, allegheny, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/allegheny/definitions/1324318>. |
| MLA | WordNet. "allegheny" 23 October 2010. Web. 24 September 2026. <http://smartdefine.org/allegheny/definitions/1324318> |