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| a scraped spot or area; the result of rubbing or abrading |
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| a fan-shaped alluvial deposit formed by a stream where its velocity is abruptly decreased, as at the mouth of a ravine or at the foot of a mountain. |
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| the lowest level to which running water can erode the land. |
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| the sand, gravel, boulders, or other debris transported by rolling or sliding along the bottom of a stream. |
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| a nearly flat plain of alluvial deposit between diverging branches of the mouth of a river, often, though not necessarily, triangular: the Nile delta. |
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| a sending or coming forth, as of water from a pipe; ejection; emission. |
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| Physical Geography. the line or zone of higher ground between two adjacent streams or drainage basins. |
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drainage basin or watershed [image] |
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| the area drained by a river and all its tributaries. Also called catchment area, drainage area. Compare watershed |
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| a sudden and destructive rush of water down a narrow gully or over a sloping surface, caused by heavy rainfall. |
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| a nearly flat plain along the course of a stream or river that is naturally subject to flooding. |
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| a small valley or ravine originally worn away by running water and serving as a drainageway after prolonged heavy rains. |
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- An embankment raised to prevent a river from overflowing.
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| Usually, meanders. turnings or windings; a winding path or course. |
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| a hole formed in pavement, as by excessive use or by extremes of weather. |
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| Also called suspension system. the arrangement of springs, shock absorbers, hangers, etc., in an automobile, railway car, etc., connecting the wheel-suspension units or axles to the chassis frame. |
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| a transverse gap in a mountain ridge, cut by and giving passage to a stream or river. |
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