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Stack #3374442
| Term | Definition |
|---|---|
| Source | The place where a river begins |
| Course | The route the river takes to the sea |
| Tributary | A small river that joins a larger river |
| Confluence | The point where the tributary joins the river |
| Mouth | The point where the river enters the sea |
| Drainage Basin | The area of land drained by a river |
| Watershed | The high ground separating one river drainage basin from another |
| Estuary | The part where fresh water meets the sea that is tidal |