Definition of floodplain in English:



  • An area of low-lying ground adjacent to a river, formed mainly of river sediments and subject to flooding.

    • ‘One of the conditions of the sale was that this area should remain a flood plain, or washland as it is sometimes called.’
    • ‘By following the contour lines on an Ordnance Survey map it is clear that the vast majority of the land area is above the flood plain.’
    • ‘The adjacent flood plain was left high and dry, depriving the inhabitants of the catfish and other marshland staples of their diet.’
    • ‘A single-lane carriageway will be carried over the River Nadder and its flood plain on a viaduct.’
    • ‘The footprints are from 175 million years ago - about ten million years more recently than Ike's fossil, by which time the Jurassic seas over Yorkshire had given way to a low-lying flood plain.’
    • ‘But some opposition councillors have expressed concern the land may be part of the flood plain of the River Brain, which runs along the rear of Spring Lodge.’
    • ‘If you build flood banks at the edge of the river, that tends to cut the river off from its flood plain.’
    • ‘To the north is the main wine-growing region, the flood plain of the Wairau River.’
    • ‘The most central region culturally and economically is the lowland flood plain of the Mekong River and Tonle Sap Lake.’
    • ‘This area is a flood plain but the blocked drainage channels are taking a long time to clear.’
    • ‘The objectors say the problem is that Iburndale Beck runs alongside the land and the area is a low-lying flood plain.’
    • ‘The Tigers' home, known simply as the Wy Yung footy ground, is on a picturesque flood plain between the Mitchell River and Clifton Creek, which flows into the river a little downstream.’
    • ‘Bearing in mind that much of the Vale of York is on a flood plain, the area is susceptible to high levels of flooding.’
    • ‘The only thing that now stands in the way of the development is an assessment by the Scottish Environment Protection Agency of the risks of constructing this large public building on the flood plain of a river.’
    • ‘The bypass will also cut across the flood plain of the river, effectively forming a dam to natural drainage.’
    • ‘Far below the existing fortified circuit of walls, there is another line of mud brick walls and watchtowers that separate the city from the wide flood plain of the Poshtrud River.’
    • ‘Lastly the Holocene (10,000 years to present) deposits that occur under Belfast were mainly deposited on the flood plain of the River Lagan.’
    • ‘I am in possession of the Environment Agency's map indicating the extent of the flood plain in this area.’
    • ‘The area had been a flood plain, so the soil is naturally fertile.’
    • ‘This is Marshgate Lane, a 100% non-residential slice of East London, one solitary road cutting across the flood plain of the River Lea.’