"covering space" meaning in English

{
  "forms": [
    {
      "form": "covering spaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "covering space (plural covering spaces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "orig": "en:Topology",
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            "Formal sciences",
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      ],
      "examples": [
        {
          "ref": "2019, William S. Massey, A Basic Course in Algebraic Topology, page 132:",
          "text": "Let (X, p) be a covering space of X such that X is simply connected.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The domain of a covering of a topological space; the covering together with its domain. (See Usage notes at covering)."
      ],
      "id": "en-covering_space-en-noun-bRAx1sTg",
      "links": [
        [
          "topology",
          "topology"
        ],
        [
          "domain",
          "domain"
        ],
        [
          "covering",
          "covering"
        ],
        [
          "Usage notes at covering",
          "covering#Usage_notes"
        ]
      ],
      "raw_glosses": [
        "(topology) The domain of a covering of a topological space; the covering together with its domain. (See Usage notes at covering)."
      ],
      "topics": [
        "mathematics",
        "sciences",
        "topology"
      ],
      "wikipedia": [
        "covering space"
      ]
    }
  ],
  "word": "covering space"
}

{
  "forms": [
    {
      "form": "covering spaces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
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      "expansion": "covering space (plural covering spaces)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "2019, William S. Massey, A Basic Course in Algebraic Topology, page 132:",
          "text": "Let (X, p) be a covering space of X such that X is simply connected.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The domain of a covering of a topological space; the covering together with its domain. (See Usage notes at covering)."
      ],
      "links": [
        [
          "topology",
          "topology"
        ],
        [
          "domain",
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        ],
        [
          "covering",
          "covering"
        ],
        [
          "Usage notes at covering",
          "covering#Usage_notes"
        ]
      ],
      "raw_glosses": [
        "(topology) The domain of a covering of a topological space; the covering together with its domain. (See Usage notes at covering)."
      ],
      "topics": [
        "mathematics",
        "sciences",
        "topology"
      ],
      "wikipedia": [
        "covering space"
      ]
    }
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  "word": "covering space"
}