"Mare Balticum" meaning in Latin

{
  "etymology_text": "From mare (“sea”) + balticum, the neuter form of balticus (“Baltic”). Literally \"the Baltic sea\".",
  "forms": [
    {
      "form": "Maris Balticī",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "la-ndecl",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "Mare Balticum",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "Maris Balticī",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "Marī Balticō",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "Mare Balticum",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "Marī Balticō",
      "source": "declension",
      "tags": [
        "ablative",
        "singular"
      ]
    },
    {
      "form": "Mare Balticum",
      "source": "declension",
      "tags": [
        "singular",
        "vocative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Mare<3.N.I.pure> Balticum<+>"
      },
      "expansion": "Mare Balticum n sg (genitive Maris Balticī); third declension",
      "name": "la-proper noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "Mare<3.N.I.pure> Balticum<+>"
      },
      "name": "la-ndecl"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Latin entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Latin neuter nouns in the third declension",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "place",
          "langcode": "la",
          "name": "Seas",
          "orig": "la:Seas",
          "parents": [
            "Bodies of water",
            "Places",
            "Landforms",
            "Water",
            "Names",
            "Earth",
            "Liquids",
            "All topics",
            "Proper nouns",
            "Terms by semantic function",
            "Nature",
            "Matter",
            "Fundamental",
            "Nouns",
            "Chemistry",
            "Lemmas",
            "Sciences"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the Baltic Sea"
      ],
      "id": "en-Mare_Balticum-la-name-p311iBiT",
      "links": [
        [
          "Baltic Sea",
          "Baltic Sea"
        ]
      ],
      "tags": [
        "declension-3",
        "neuter",
        "singular"
      ],
      "wikipedia": [
        "la:Mare Balticum"
      ]
    }
  ],
  "word": "Mare Balticum"
}

{
  "etymology_text": "From mare (“sea”) + balticum, the neuter form of balticus (“Baltic”). Literally \"the Baltic sea\".",
  "forms": [
    {
      "form": "Maris Balticī",
      "tags": [
        "genitive"
      ]
    },
    {
      "form": "no-table-tags",
      "source": "declension",
      "tags": [
        "table-tags"
      ]
    },
    {
      "form": "la-ndecl",
      "source": "declension",
      "tags": [
        "inflection-template"
      ]
    },
    {
      "form": "Mare Balticum",
      "source": "declension",
      "tags": [
        "nominative",
        "singular"
      ]
    },
    {
      "form": "Maris Balticī",
      "source": "declension",
      "tags": [
        "genitive",
        "singular"
      ]
    },
    {
      "form": "Marī Balticō",
      "source": "declension",
      "tags": [
        "dative",
        "singular"
      ]
    },
    {
      "form": "Mare Balticum",
      "source": "declension",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "Marī Balticō",
      "source": "declension",
      "tags": [
        "ablative",
        "singular"
      ]
    },
    {
      "form": "Mare Balticum",
      "source": "declension",
      "tags": [
        "singular",
        "vocative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "Mare<3.N.I.pure> Balticum<+>"
      },
      "expansion": "Mare Balticum n sg (genitive Maris Balticī); third declension",
      "name": "la-proper noun"
    }
  ],
  "inflection_templates": [
    {
      "args": {
        "1": "Mare<3.N.I.pure> Balticum<+>"
      },
      "name": "la-ndecl"
    }
  ],
  "lang": "Latin",
  "lang_code": "la",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "Latin entries with incorrect language header",
        "Latin entries with topic categories using raw markup",
        "Latin lemmas",
        "Latin multiword terms",
        "Latin neuter nouns",
        "Latin neuter nouns in the third declension",
        "Latin nouns with red links in their inflection tables",
        "Latin proper nouns",
        "Latin third declension nouns",
        "Pages with 1 entry",
        "la:Seas"
      ],
      "glosses": [
        "the Baltic Sea"
      ],
      "links": [
        [
          "Baltic Sea",
          "Baltic Sea"
        ]
      ],
      "tags": [
        "declension-3",
        "neuter",
        "singular"
      ],
      "wikipedia": [
        "la:Mare Balticum"
      ]
    }
  ],
  "word": "Mare Balticum"
}