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| al·lu·vi·al fan (plural al·lu·vi·al fans) |
noun |
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| Definition: |
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1. fan-shaped area deposited by slowed river: a fan-shaped area of alluvium deposited by a river when reaching flatter land
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2. fan-shaped deposit of sediments: a fan-shaped deposit of sediment formed at the point where a stream enters a valley or plain or another, larger stream
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