- a strait between the islands of Honshu and Hokkaido, N Japan, connecting the Sea of Japan with the Pacific Ocean. 100 miles (160 km) long and 15–25 miles (24–40 km) wide.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a channel between N Honshu and S Hokkaido islands, Japan. Width: about 30 km (20 miles)