Definition of impolder in US English:



[with object]
  • Make (an area of the seabed) into a polder by reclaiming it from the sea.

    • ‘Even today the Dutch are famous for impoldering, building dikes and all kinds of water control.’
    • ‘Increasingly, however, the floodplain has become empoldered and compartmentalised for flood protection and agriculture.’
    • ‘Some were impoldered with embankments, pumps, and deep canals, but those proved hard to maintain.’
    • ‘But, as the main waterways became silted up and were impoldered, the character of the city changed.’
    • ‘A number of inland areas have been also been empoldered, some of them provided with pump drainage.’


Late 19th century: from Dutch impolderen.