"tail rotor" meaning in English

{
  "forms": [
    {
      "form": "tail rotors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tail rotor (plural tail rotors)",
      "name": "en-noun"
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "A small rotor mounted vertically at the end of the tail of a single-rotor helicopter so as to develop thrust in the same direction as the main rotor's rotation, to counter the torque effect created by the main rotor."
      ],
      "id": "en-tail_rotor-en-noun-Z7kKhHZE",
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "mounted",
          "mount"
        ],
        [
          "vertically",
          "vertically"
        ],
        [
          "helicopter",
          "helicopter"
        ],
        [
          "thrust",
          "thrust"
        ],
        [
          "torque",
          "torque"
        ]
      ],
      "raw_glosses": [
        "(aviation) A small rotor mounted vertically at the end of the tail of a single-rotor helicopter so as to develop thrust in the same direction as the main rotor's rotation, to counter the torque effect created by the main rotor."
      ],
      "synonyms": [
        {
          "word": "auxiliary rotor"
        }
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "small rotor",
          "word": "pyrstöroottori"
        }
      ],
      "wikipedia": [
        "tail rotor"
      ]
    }
  ],
  "word": "tail rotor"
}

{
  "forms": [
    {
      "form": "tail rotors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "tail rotor (plural tail rotors)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        "English countable nouns",
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        "en:Aviation"
      ],
      "glosses": [
        "A small rotor mounted vertically at the end of the tail of a single-rotor helicopter so as to develop thrust in the same direction as the main rotor's rotation, to counter the torque effect created by the main rotor."
      ],
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "mounted",
          "mount"
        ],
        [
          "vertically",
          "vertically"
        ],
        [
          "helicopter",
          "helicopter"
        ],
        [
          "thrust",
          "thrust"
        ],
        [
          "torque",
          "torque"
        ]
      ],
      "raw_glosses": [
        "(aviation) A small rotor mounted vertically at the end of the tail of a single-rotor helicopter so as to develop thrust in the same direction as the main rotor's rotation, to counter the torque effect created by the main rotor."
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "tail rotor"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "auxiliary rotor"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "small rotor",
      "word": "pyrstöroottori"
    }
  ],
  "word": "tail rotor"
}