"simply connected" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "simply connected (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Turkish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Topology",
          "orig": "en:Topology",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Having its fundamental group a singleton."
      ],
      "id": "en-simply_connected-en-adj-AaUp2rF7",
      "links": [
        [
          "topology",
          "topology"
        ],
        [
          "topological space",
          "topological space"
        ],
        [
          "fundamental group",
          "fundamental group"
        ],
        [
          "singleton",
          "singleton"
        ]
      ],
      "raw_glosses": [
        "(topology, of a topological space) Having its fundamental group a singleton."
      ],
      "raw_tags": [
        "of a topological space"
      ],
      "related": [
        {
          "word": "simple connectivity"
        },
        {
          "word": "simple connectedness"
        }
      ],
      "synonyms": [
        {
          "word": "1-connected"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "sciences",
        "topology"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "dān liántōng de",
          "sense": "in topology, having its fundamental group a singleton",
          "word": "单连通的"
        },
        {
          "code": "da",
          "lang": "Danish",
          "sense": "in topology, having its fundamental group a singleton",
          "word": "enkeltsammenhængende"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "in topology, having its fundamental group a singleton",
          "tags": [
            "masculine"
          ],
          "word": "jednospójny"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "in topology, having its fundamental group a singleton",
          "word": "enkelt sammanhängande"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "in topology, having its fundamental group a singleton",
          "word": "basit bağlantılı"
        }
      ]
    }
  ],
  "word": "simply connected"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "simply connected (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "simple connectivity"
    },
    {
      "word": "simple connectedness"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English adverb-adjective phrases",
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      ],
      "glosses": [
        "Having its fundamental group a singleton."
      ],
      "links": [
        [
          "topology",
          "topology"
        ],
        [
          "topological space",
          "topological space"
        ],
        [
          "fundamental group",
          "fundamental group"
        ],
        [
          "singleton",
          "singleton"
        ]
      ],
      "raw_glosses": [
        "(topology, of a topological space) Having its fundamental group a singleton."
      ],
      "raw_tags": [
        "of a topological space"
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "sciences",
        "topology"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "1-connected"
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "dān liántōng de",
      "sense": "in topology, having its fundamental group a singleton",
      "word": "单连通的"
    },
    {
      "code": "da",
      "lang": "Danish",
      "sense": "in topology, having its fundamental group a singleton",
      "word": "enkeltsammenhængende"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "in topology, having its fundamental group a singleton",
      "tags": [
        "masculine"
      ],
      "word": "jednospójny"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "in topology, having its fundamental group a singleton",
      "word": "enkelt sammanhängande"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "in topology, having its fundamental group a singleton",
      "word": "basit bağlantılı"
    }
  ],
  "word": "simply connected"
}