"עמוד השדרה" meaning in Hebrew

{
  "forms": [
    {
      "form": "עַמּוּד הַ שִּׁדְרָה",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "amúd hashidrá",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "tr": "amúd hashidrá",
        "wv": "עַמּוּד הַשִּׁדְרָה"
      },
      "expansion": "עַמּוּד הַשִּׁדְרָה • (amúd hashidrá) m",
      "name": "he-noun"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hebrew entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "spinal column"
      ],
      "id": "en-עמוד_השדרה-he-noun-ezHh0Dty",
      "links": [
        [
          "spinal column",
          "spinal column"
        ]
      ],
      "synonyms": [
        {
          "roman": "shidrá",
          "word": "שִׁדְרָה"
        }
      ]
    }
  ],
  "word": "עמוד השדרה"
}

{
  "forms": [
    {
      "form": "עַמּוּד הַ שִּׁדְרָה",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "amúd hashidrá",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "g": "m",
        "tr": "amúd hashidrá",
        "wv": "עַמּוּד הַשִּׁדְרָה"
      },
      "expansion": "עַמּוּד הַשִּׁדְרָה • (amúd hashidrá) m",
      "name": "he-noun"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Hebrew entries with incorrect language header",
        "Hebrew lemmas",
        "Hebrew masculine nouns",
        "Hebrew multiword terms",
        "Hebrew noun entries missing plural construct forms",
        "Hebrew noun entries missing plural forms",
        "Hebrew noun entries missing singular construct forms",
        "Hebrew nouns"
      ],
      "glosses": [
        "spinal column"
      ],
      "links": [
        [
          "spinal column",
          "spinal column"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "shidrá",
      "word": "שִׁדְרָה"
    }
  ],
  "word": "עמוד השדרה"
}