an island off SE Canada, in NE Nova Scotia, separated from the mainland by the Strait of Canso: its easternmost point is Cape Breton. Pop: 132 298 (2006). Area: 10 280 sq km (3970 sq miles)
Cape Breton Island in American English
island constituting the NE part of Nova Scotia, Canada: 3,981 sq mi (10,311 sq km)