"hemiazygos" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "hemiazygos (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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        {
          "kind": "other",
          "langcode": "en",
          "name": "Anatomy",
          "orig": "en:Anatomy",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "hemiazygos vein"
        }
      ],
      "glosses": [
        "A minor counterpart of an azygos structure."
      ],
      "id": "en-hemiazygos-en-adj-X2mS5lmq",
      "links": [
        [
          "anatomy",
          "anatomy"
        ]
      ],
      "raw_glosses": [
        "(anatomy) A minor counterpart of an azygos structure."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ],
      "translations": [
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "hemiácigo"
        }
      ]
    }
  ],
  "word": "hemiazygos"
}

{
  "derived": [
    {
      "word": "hemiazygos vein"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "hemiazygos (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
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        "en:Anatomy"
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      "glosses": [
        "A minor counterpart of an azygos structure."
      ],
      "links": [
        [
          "anatomy",
          "anatomy"
        ]
      ],
      "raw_glosses": [
        "(anatomy) A minor counterpart of an azygos structure."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "hemiácigo"
    }
  ],
  "word": "hemiazygos"
}