Frisian Islands
plural noun
a chain of islands in the North Sea, extending along the coasts of the Netherlands, Germany, and Denmark: includes groups belonging to the Netherlands (West Frisians) and to Germany (East Frisians) and a group divided between Germany and Denmark (North Frisians).
British Dictionary definitions for frisian islands
Frisian Islands
pl n
a chain of islands in the North Sea along the coasts of the Netherlands, Germany, and Denmark: separated from the mainland by shallows