"hemimeridian" meaning in English

{
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        "2": "hemi",
        "3": "meridian"
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      "expansion": "hemi- + meridian",
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  ],
  "etymology_text": "hemi- + meridian",
  "forms": [
    {
      "form": "hemimeridians",
      "tags": [
        "plural"
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  ],
  "head_templates": [
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      "expansion": "hemimeridian (plural hemimeridians)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "parents": [],
          "source": "w"
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          "name": "Anatomy",
          "orig": "en:Anatomy",
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            "Biology",
            "Medicine",
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      ],
      "glosses": [
        "Either half of the curved surface of a cornea"
      ],
      "id": "en-hemimeridian-en-noun-3iq3zw1t",
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "curved",
          "curved"
        ],
        [
          "surface",
          "surface"
        ],
        [
          "cornea",
          "cornea"
        ]
      ],
      "raw_glosses": [
        "(anatomy) Either half of the curved surface of a cornea"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "word": "hemimeridian"
}

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        "2": "hemi",
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      },
      "expansion": "hemi- + meridian",
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    }
  ],
  "etymology_text": "hemi- + meridian",
  "forms": [
    {
      "form": "hemimeridians",
      "tags": [
        "plural"
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  ],
  "head_templates": [
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      "expansion": "hemimeridian (plural hemimeridians)",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Either half of the curved surface of a cornea"
      ],
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        [
          "anatomy",
          "anatomy"
        ],
        [
          "curved",
          "curved"
        ],
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        ],
        [
          "cornea",
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      ],
      "raw_glosses": [
        "(anatomy) Either half of the curved surface of a cornea"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "word": "hemimeridian"
}