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mare nostrum

noun ma·re no·strum \ ˈmär-(ˌ)ā-ˈnōs-trəm \

Definition of mare nostrum

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

Origin and Etymology of mare nostrum

New Latin, literally, our sea

NEW! Time Traveler

First Known Use: 1921

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