"leech line" meaning in English

{
  "forms": [
    {
      "form": "leech lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leech line (plural leech lines)",
      "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": "other",
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          "parents": [],
          "source": "w"
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        {
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          "source": "w"
        },
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          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Nautical",
          "orig": "en:Nautical",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1984, Sven Donaldson, A Sailor's Guide to Sails, page 130:",
          "text": "The leechline is ordinarily anchored at the head of the sail[…]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A line for tightening the leech of a triangular mainsail to prevent it from fluttering."
      ],
      "id": "en-leech_line-en-noun-l6rRCJaU",
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "leech",
          "leech"
        ],
        [
          "mainsail",
          "mainsail"
        ]
      ],
      "raw_glosses": [
        "(nautical) A line for tightening the leech of a triangular mainsail to prevent it from fluttering."
      ],
      "related": [
        {
          "word": "leech"
        }
      ],
      "synonyms": [
        {
          "word": "leechline"
        }
      ],
      "topics": [
        "nautical",
        "transport"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "line for tightening the leech of a triangular mainsail",
          "word": "snörppi"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "line for tightening the leech of a triangular mainsail",
          "word": "ralingue"
        }
      ],
      "wikipedia": [
        "parts of a sail"
      ]
    }
  ],
  "word": "leech line"
}

{
  "forms": [
    {
      "form": "leech lines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "leech line (plural leech lines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "leech"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned",
        "Terms with Finnish translations",
        "Terms with French translations",
        "en:Nautical"
      ],
      "examples": [
        {
          "ref": "1984, Sven Donaldson, A Sailor's Guide to Sails, page 130:",
          "text": "The leechline is ordinarily anchored at the head of the sail[…]",
          "type": "quote"
        }
      ],
      "glosses": [
        "A line for tightening the leech of a triangular mainsail to prevent it from fluttering."
      ],
      "links": [
        [
          "nautical",
          "nautical"
        ],
        [
          "leech",
          "leech"
        ],
        [
          "mainsail",
          "mainsail"
        ]
      ],
      "raw_glosses": [
        "(nautical) A line for tightening the leech of a triangular mainsail to prevent it from fluttering."
      ],
      "topics": [
        "nautical",
        "transport"
      ],
      "wikipedia": [
        "parts of a sail"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "leechline"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "line for tightening the leech of a triangular mainsail",
      "word": "snörppi"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "line for tightening the leech of a triangular mainsail",
      "word": "ralingue"
    }
  ],
  "word": "leech line"
}