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mare clausum

American  
[mair-ee klaw-suhm, mahr-ey, mah-re klou-soom] / ˈmɛər i ˈklɔ səm, ˈmɑr eɪ, ˈmɑ rɛ ˈklaʊ sʊm /

noun

  1. a body of navigable water under the sole jurisdiction of a nation.


mare clausum British  
/ ˈmɑːreɪ ˈklaʊsʊm /

noun

  1. law a sea coming under the jurisdiction of one nation and closed to all others Compare mare liberum

"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

Etymology

Origin of mare clausum

1645–55; < Latin: closed sea

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In its expansive definition of national sovereignty, this treaty allowed European states to acquire “barbarous nations” by conquest and make entire oceans into a mare clausum, or a closed sea, through exploration.

From Salon

The last have long been pursued by American whalers, whose destructive methods have so greatly depleted the supply that the government of Canada is anxious to declare the bay a mare clausum.

From Project Gutenberg

This doctrine in the History of International Law is known as that of mare clausum, or “closed sea.”

From Project Gutenberg

Several Canadian sealers were seized by the United States in 1886, on the plea that these waters constituted a mare clausum, or closed sea.

From Project Gutenberg

And now, if I be forgiven for venting this egotistic digression and harangue, I promise to make my mouth a mare clausum in future, for all personal grievances.

From Project Gutenberg