"longtail cast-on" meaning in English

{
  "forms": [
    {
      "form": "longtail cast-ons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "longtail cast-on (plural longtail cast-ons)",
      "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"
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Knitting",
          "orig": "en:Knitting",
          "parents": [
            "Crafts",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A type of cast-on technique involving a long tail of yarn."
      ],
      "id": "en-longtail_cast-on-en-noun-N8T9Vss6",
      "links": [
        [
          "knitting",
          "knitting#Noun"
        ],
        [
          "cast-on",
          "cast-on"
        ],
        [
          "yarn",
          "yarn"
        ]
      ],
      "raw_glosses": [
        "(knitting) A type of cast-on technique involving a long tail of yarn."
      ],
      "topics": [
        "business",
        "knitting",
        "manufacturing",
        "textiles"
      ]
    }
  ],
  "word": "longtail cast-on"
}

{
  "forms": [
    {
      "form": "longtail cast-ons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "longtail cast-on (plural longtail cast-ons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Knitting"
      ],
      "glosses": [
        "A type of cast-on technique involving a long tail of yarn."
      ],
      "links": [
        [
          "knitting",
          "knitting#Noun"
        ],
        [
          "cast-on",
          "cast-on"
        ],
        [
          "yarn",
          "yarn"
        ]
      ],
      "raw_glosses": [
        "(knitting) A type of cast-on technique involving a long tail of yarn."
      ],
      "topics": [
        "business",
        "knitting",
        "manufacturing",
        "textiles"
      ]
    }
  ],
  "word": "longtail cast-on"
}