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 21, 2026, from http://smartdefine.org/allegheny/definitions/1324318 |
| Chicago | WordNet. 2010. "allegheny" http://smartdefine.org/allegheny/definitions/1324318 (accessed September 21, 2026). |
| Harvard | WordNet 2010, allegheny, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/allegheny/definitions/1324318>. |
| MLA | WordNet. "allegheny" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/allegheny/definitions/1324318> |