- an island in N Lake Huron belonging to Canada. 80 miles (130 km) long.
Also called Manitoulin Island.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- an island in N Lake Huron in Ontario: the largest freshwater island in the world. Length: 129 km (80 miles). Width: up to 48 km (30 miles)