from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A navigable body of water, such as a sea, that is under the jurisdiction of one nation and closed to all others.

from the GNU version of the Collaborative International Dictionary of English

  • Lit., closed sea; hence, a body of water within the separate jurisdiction of the nation; -- opposed to open sea (mare liberum), the water open to all nations and over which no single nation has special control.

from The Century Dictionary and Cyclopedia

  • n. A closed sea; a sea closed to navigation; a sea or a part of the high seas within the jurisdiction of a particular nation, as distinguished from the open sea, where all nations have equal right.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (closed sea) a navigable body of water under the jurisdiction of a single nation


New Latin : Latin mare, sea + Latin clausum, closed.
(American Heritage® Dictionary of the English Language, Fourth Edition)


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