noun
- A ridge of land that separates two adjacent river systems.
- synonyms: water parting, divide
- The entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet.
- usage: "flood control in the Missouri basin"
- synonyms: river basin, basin, drainage basin, catchment area, catchment basin, drainage area
- An event marking a unique or important historical change of course or one on which important developments depend.
- usage: "the agreement was a watershed in the history of both nations"
- synonyms: landmark, turning point
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). watershed. Retrieved September 20, 2026, from http://smartdefine.org/watershed/definitions/1224573 |
| Chicago | WordNet. 2010. "watershed" http://smartdefine.org/watershed/definitions/1224573 (accessed September 20, 2026). |
| Harvard | WordNet 2010, watershed, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/watershed/definitions/1224573>. |
| MLA | WordNet. "watershed" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/watershed/definitions/1224573> |