"zenith sector" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "Synonym of zenith telescope"
      ],
      "id": "en-zenith_sector-en-noun-EQAr0DcL",
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        "(astronomy) Synonym of zenith telescope"
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          "word": "zenith telescope"
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      "topics": [
        "astronomy",
        "natural-sciences"
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      "wikipedia": [
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  "word": "zenith sector"
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    {
      "form": "zenith sectors",
      "tags": [
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  "lang_code": "en",
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        "(astronomy) Synonym of zenith telescope"
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  "word": "zenith sector"
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