Polders, low marshy lands in Holland and Belgium, drained and reclaimed from sea or river; they form an important part of the former, and are conspicuous from the verdure they display; they include nearly 150 acres of good land, the largest being that of Haarlem Meer, which is 70 square miles in extent, and was drained by steam.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Poland * Pole