mare nostrum


ma·re no·strum

noun \ˈmär-(ˌ)ā-ˈnōs-trəm\

Definition of MARE NOSTRUM

:  a navigable body of water (as a sea) that belongs to a single nation or is mutually shared by two or more nations

Origin of MARE NOSTRUM

New Latin, literally, our sea
First Known Use: 1921

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