British Isles
plural noun
a group of islands in W Europe: Great Britain, Ireland, the Isle of Man, and adjacent small islands. 120,592 sq. mi. (312,300 sq. km).
British Dictionary definitions for british isles
British Isles
pl n
a group of islands in W Europe, consisting of Great Britain, Ireland, the Isle of Man, Orkney, Shetland, the Channel Islands belonging to Great Britain, and the islands adjacent to these