"rdzeń kręgowy" meaning in Polish

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "rdzeń kręgowy f",
      "name": "pl-noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Polish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "pl",
          "name": "Anatomy",
          "orig": "pl:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "Healthcare",
            "All topics",
            "Health",
            "Fundamental",
            "Body"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "spinal cord"
      ],
      "id": "en-rdzeń_kręgowy-pl-noun-ScARUpNe",
      "links": [
        [
          "spinal cord",
          "spinal cord"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/rd͡zɛɲ krɛŋˈɡɔ.vɘ/"
    },
    {
      "rhymes": "-ɔvɘ"
    }
  ],
  "word": "rdzeń kręgowy"
}

{
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "rdzeń kręgowy f",
      "name": "pl-noun"
    }
  ],
  "lang": "Polish",
  "lang_code": "pl",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Polish entries with incorrect language header",
        "Polish feminine nouns",
        "Polish lemmas",
        "Polish multiword terms",
        "Polish nouns",
        "Polish terms with IPA pronunciation",
        "Polish terms with audio links",
        "Rhymes:Polish/ɔvɘ",
        "pl:Anatomy"
      ],
      "glosses": [
        "spinal cord"
      ],
      "links": [
        [
          "spinal cord",
          "spinal cord"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/rd͡zɛɲ krɛŋˈɡɔ.vɘ/"
    },
    {
      "rhymes": "-ɔvɘ"
    }
  ],
  "word": "rdzeń kręgowy"
}