Polish Corridor 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.
strip of Poland between Germany & East Prussia, giving Poland an outlet to the Baltic Sea (1919-39): c. 120 mi (193 km) long; 20-70 mi (32-113 km) wide
Polish Corridor definition by American Heritage Dictionary
A strip of land between the German territories of Pomerania and East Prussia awarded to Poland by the Treaty of Versailles (1919) to afford access to the Baltic Sea. Friction over control of the area was an immediate cause of the German invasion of Poland (September 1, 1939) that marked the beginning of World War II.