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mare clausum

[mair-ee klaw-suh m, mahr-ey; Latin mah-re klou-soo m]
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noun
  1. a body of navigable water under the sole jurisdiction of a nation.
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Compare mare liberum.

Origin of mare clausum

1645–55; < Latin: closed sea
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for mare clausum

mare clausum

noun
  1. law a sea coming under the jurisdiction of one nation and closed to all othersCompare mare liberum
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Word Origin

Latin: closed sea
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012