polder

[pohl-der]
noun
a tract of low land, especially in the Netherlands, reclaimed from the sea or other body of water and protected by dikes.

Origin:
1595–1605; < Dutch

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polder (ˈpəʊldə, ˈpɒl-)
 
n
a stretch of land reclaimed from the sea or a lake, esp in the Netherlands
 
[C17: from Middle Dutch polre]

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polder

tract of lowland reclaimed from a body of water, often the sea, by the construction of dikes roughly parallel to the shoreline, followed by drainage of the area between the dikes and the natural coastline. Where the land surface is above low-tide level, the water may be drained off through tide gates, which discharge water into the sea at low tide and automatically close to prevent re-entry of seawater at high tide. To reclaim lands that are below low-tide level, the water must be pumped over the dikes. If a sediment-laden stream can be diverted into the polder area, the sediment may serve to build up the polder bottom to a higher level, thus facilitating drainage.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
But the second is that this success had little to do either with the polder model or with consensus-building.
For the southwest polder, university and government researchers are considering what kinds of development might be suitable.
Few things are more beautiful than one of the narrow roads that run along the polder dikes.
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