"dragon's tail" meaning in English

{
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      "langcode": "en",
      "name": "Oceanography",
      "orig": "en:Oceanography",
      "parents": [
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        "All topics",
        "Fundamental"
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      "source": "w+disamb"
    }
  ],
  "forms": [
    {
      "form": "dragon's tails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "dragon's tail (countable and uncountable, plural dragon's tails)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "94 6",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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        {
          "_dis": "59 41",
          "kind": "topical",
          "langcode": "en",
          "name": "Measuring instruments",
          "orig": "en:Measuring instruments",
          "parents": [
            "Tools",
            "Technology",
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            "Fundamental"
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          "source": "w+disamb"
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            "Transport",
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            "Fundamental"
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        },
        {
          "_dis": "100 0",
          "kind": "topical",
          "langcode": "en",
          "name": "Temperature",
          "orig": "en:Temperature",
          "parents": [
            "Nature",
            "Weather",
            "All topics",
            "Atmosphere",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A thermistor that is towed behind a ship to measure the ocean's temperature."
      ],
      "id": "en-dragon's_tail-en-noun-IdwTmx8L",
      "links": [
        [
          "thermistor",
          "thermistor"
        ],
        [
          "tow",
          "tow"
        ],
        [
          "ship",
          "ship"
        ],
        [
          "ocean",
          "ocean"
        ],
        [
          "temperature",
          "temperature"
        ]
      ],
      "raw_glosses": [
        "(countable) A thermistor that is towed behind a ship to measure the ocean's temperature."
      ],
      "tags": [
        "countable"
      ]
    },
    {
      "glosses": [
        "Used other than figuratively or idiomatically: see dragon, tail."
      ],
      "id": "en-dragon's_tail-en-noun-PrrnKUV0",
      "links": [
        [
          "dragon",
          "dragon#English"
        ],
        [
          "tail",
          "tail#English"
        ]
      ],
      "related": [
        {
          "_dis1": "0 100",
          "word": "tickle the dragon's tail"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "dragon's tail"
}

{
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    "en:Measuring instruments",
    "en:Nautical",
    "en:Oceanography",
    "en:Temperature"
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  "forms": [
    {
      "form": "dragon's tails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "tickle the dragon's tail"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns"
      ],
      "glosses": [
        "A thermistor that is towed behind a ship to measure the ocean's temperature."
      ],
      "links": [
        [
          "thermistor",
          "thermistor"
        ],
        [
          "tow",
          "tow"
        ],
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          "ship",
          "ship"
        ],
        [
          "ocean",
          "ocean"
        ],
        [
          "temperature",
          "temperature"
        ]
      ],
      "raw_glosses": [
        "(countable) A thermistor that is towed behind a ship to measure the ocean's temperature."
      ],
      "tags": [
        "countable"
      ]
    },
    {
      "glosses": [
        "Used other than figuratively or idiomatically: see dragon, tail."
      ],
      "links": [
        [
          "dragon",
          "dragon#English"
        ],
        [
          "tail",
          "tail#English"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "dragon's tail"
}