"geometrijska sredina" meaning in Serbo-Croatian

{
  "forms": [
    {
      "form": "geomètrījskā sredìna",
      "tags": [
        "canonical",
        "feminine"
      ]
    },
    {
      "form": "геомѐтрӣјска̄ средѝна",
      "tags": [
        "Cyrillic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "f",
        "head": "geomètrījskā sredìna"
      },
      "expansion": "geomètrījskā sredìna f (Cyrillic spelling геомѐтрӣјска̄ средѝна)",
      "name": "sh-noun"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Serbo-Croatian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "sh",
          "name": "Mathematics",
          "orig": "sh:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "geometric mean"
      ],
      "id": "en-geometrijska_sredina-sh-noun-raf4yHL6",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "geometric mean",
          "geometric mean"
        ]
      ],
      "raw_glosses": [
        "(mathematics) geometric mean"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "geometrijska sredina"
}

{
  "forms": [
    {
      "form": "geomètrījskā sredìna",
      "tags": [
        "canonical",
        "feminine"
      ]
    },
    {
      "form": "геомѐтрӣјска̄ средѝна",
      "tags": [
        "Cyrillic"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "f",
        "head": "geomètrījskā sredìna"
      },
      "expansion": "geomètrījskā sredìna f (Cyrillic spelling геомѐтрӣјска̄ средѝна)",
      "name": "sh-noun"
    }
  ],
  "lang": "Serbo-Croatian",
  "lang_code": "sh",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Serbo-Croatian entries with incorrect language header",
        "Serbo-Croatian feminine nouns",
        "Serbo-Croatian lemmas",
        "Serbo-Croatian multiword terms",
        "Serbo-Croatian nouns",
        "sh:Mathematics"
      ],
      "glosses": [
        "geometric mean"
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "geometric mean",
          "geometric mean"
        ]
      ],
      "raw_glosses": [
        "(mathematics) geometric mean"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "geometrijska sredina"
}