NORDERNEY, nôr'dĕr-nī, Germany, one of the East Friesian Islands, three miles from the coast of Germany and belonging to the province of Hanover. It is about eight miles long and a little over one mile wide, and is accessible from the mainland at low tide. It is treeless, covered with dunes which are from 50 to 75 feet in height. At the southwest extremity is a village which is protected from the sea by a wall, and the lighthouse in the centre of the island may be seen many miles. The island is the most important of the group on account of being a favorite sea-bathing place. Pop. about 4,300.