Dictionary

mare clausum

noun ma·re clau·sum \ˈmär-(ˌ)ā-ˈkla-səm, -ˈkl-\

Definition of MARE CLAUSUM

:  a navigable body of water (as a sea) that is under the jurisdiction of one nation and is closed to other nations

Origin of MARE CLAUSUM

New Latin, literally, closed sea
First Known Use: 1652

Browse

Next Word in the Dictionary: Marek's diseasePrevious Word in the Dictionary: mare (noun)All Words Near: mare clausum
May 28, 2015
fictioneer Hear it
someone who writes fiction
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears