"Pratt knot" meaning in English

{
  "etymology_text": "Invented by American businessman Jerry Pratt.",
  "forms": [
    {
      "form": "Pratt knots",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Pratt knot (plural Pratt knots)",
      "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"
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          "source": "w"
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          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
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      ],
      "glosses": [
        "A particular kind of knot for fastening a necktie."
      ],
      "id": "en-Pratt_knot-en-noun-ZsEJxAhP",
      "links": [
        [
          "knot",
          "knot"
        ],
        [
          "necktie",
          "necktie"
        ]
      ],
      "synonyms": [
        {
          "word": "Shelby knot"
        }
      ],
      "wikipedia": [
        "Pratt knot"
      ]
    }
  ],
  "word": "Pratt knot"
}

{
  "etymology_text": "Invented by American businessman Jerry Pratt.",
  "forms": [
    {
      "form": "Pratt knots",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Pratt knot (plural Pratt knots)",
      "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"
      ],
      "glosses": [
        "A particular kind of knot for fastening a necktie."
      ],
      "links": [
        [
          "knot",
          "knot"
        ],
        [
          "necktie",
          "necktie"
        ]
      ],
      "wikipedia": [
        "Pratt knot"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Shelby knot"
    }
  ],
  "word": "Pratt knot"
}