polder definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an area of low-lying land reclaimed from a sea, lake, or river, as by the building of dikes
Origin: Dutch probably akin to pool
polder definition by American Heritage Dictionary
An area of low-lying land, especially in the Netherlands, that has been reclaimed from a body of water and is protected by dikes.
Origin: Dutch, from Middle Dutch.