[mair-ee klaw-suh m, mahr-ey; Latin mah-re klou-soo m]
- a body of navigable water under the sole jurisdiction of a nation.
Compare mare liberum.
Origin of mare clausum
1645–55; < Latin: closed sea
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- law a sea coming under the jurisdiction of one nation and closed to all othersCompare mare liberum
Latin: closed sea