- a strait between N Scotland and the Orkney Islands, linking the North Sea to the Atlantic Ocean: noted for its rough sea conditions. 14 miles (23 km) long.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a channel between the mainland of N Scotland and the Orkney Islands: notorious for rough seas. Length: 32 km (20 miles). Width: up to 13 km (8 miles)