Meaning of mare clausum

ma•re clau•sum

Pronunciation: (mâr'ē klô'sum, mär'ā Lat. mä're klou's&oobrevem), [key]
  1. a body of navigable water under the sole jurisdiction of a nation. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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