- an arm of the North Pacific Ocean enclosed by the Kamchatka Peninsula, the Kurile Islands, Sakhalin, and the Russian Federation in Asia. 582,000 square miles (1,507,380 square kilometers); greatest depth, 10,554 feet (3,217 meters).
- part of the NW Pacific, surrounded by the Kamchatka Peninsula, the Kurile Islands, Sakhalin Island, and the E coast of Siberia. Area: 1 589 840 sq km (613 838 sq miles)
