A sea on the edge of one of the major oceans - examples include the Mediterranean, Caribbean and Baltic seas.
A small ocean basin created when sea-floor spreading occurs behind an island arc.
a part of ocean partially enclosed by land such as island s, archipelago s, or peninsula s
a sea bordering a continent and separated
A marginal sea is a part of ocean partially enclosed by land such as islands, archipelagos, or peninsulas. Unlike mediterranean seas, marginal seas have ocean currents caused by ocean winds.