Inland Sea definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
arm of the Pacific surrounded by the Japanese islands of Honshu, Shikoku, & Kyushu
Inland Sea definition by American Heritage Dictionary
An arm of the Pacific Ocean in southern Japan between Honshu, Shikoku, and Kyushu. Linked to the Sea of Japan by a narrow channel, the sea is famous for its scenic beauty.