mare clausum
noun
ma·re clau·sum
| \ ˈmär-(ˌ)ā-ˈklau̇-səm
, -ˈklȯ-
\
, -ˈklȯ-
\
Definition of mare clausum
: a navigable body of water (such as a sea) that is under the jurisdiction of one nation and is closed to other nations
Keep scrolling for more