fenland

Noun
  1. Low-lying wet land with grassy vegetation;
    Usually is a transition zone between land and water (synset 109370676)
    "thousands of acres of marshland"; "the fens of eastern England"
    is a type of: wetland - a low area where the land is saturated with water
    subtypes: salt marsh - low-lying wet land that is frequently flooded with saltwater
    same as: fen, marsh, marshland

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