"Whitehead link" meaning in English

{
  "etymology_text": "Named after J. H. C. Whitehead.",
  "forms": [
    {
      "form": "Whitehead links",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Whitehead link (plural Whitehead links)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Topology",
          "orig": "en:Topology",
          "parents": [
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "One of the most basic interlinkages of two loops; a link with one ring passing through the two lobes of a singly twisted loop."
      ],
      "id": "en-Whitehead_link-en-noun-ezU7l4tD",
      "links": [
        [
          "topology",
          "topology"
        ]
      ],
      "raw_glosses": [
        "(topology) One of the most basic interlinkages of two loops; a link with one ring passing through the two lobes of a singly twisted loop."
      ],
      "topics": [
        "mathematics",
        "sciences",
        "topology"
      ],
      "wikipedia": [
        "en:J. H. C. Whitehead",
        "en:Whitehead link"
      ]
    }
  ],
  "word": "Whitehead link"
}

{
  "etymology_text": "Named after J. H. C. Whitehead.",
  "forms": [
    {
      "form": "Whitehead links",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Whitehead link (plural Whitehead links)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Topology"
      ],
      "glosses": [
        "One of the most basic interlinkages of two loops; a link with one ring passing through the two lobes of a singly twisted loop."
      ],
      "links": [
        [
          "topology",
          "topology"
        ]
      ],
      "raw_glosses": [
        "(topology) One of the most basic interlinkages of two loops; a link with one ring passing through the two lobes of a singly twisted loop."
      ],
      "topics": [
        "mathematics",
        "sciences",
        "topology"
      ],
      "wikipedia": [
        "en:J. H. C. Whitehead",
        "en:Whitehead link"
      ]
    }
  ],
  "word": "Whitehead link"
}