"swayback" meaning in English

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "swaybacked"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sway",
        "3": "back"
      },
      "expansion": "sway + back",
      "name": "compound"
    }
  ],
  "etymology_text": "sway + back",
  "forms": [
    {
      "form": "swaybacks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "swayback (countable and uncountable, plural swaybacks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An excessive sagging of the spine of a quadruped animal, especially a horse."
      ],
      "id": "en-swayback-en-noun-AgO8gnbH",
      "links": [
        [
          "sagging",
          "sagging"
        ],
        [
          "spine",
          "spine"
        ],
        [
          "quadruped",
          "quadruped"
        ],
        [
          "horse",
          "horse"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [
        {
          "_dis": "50 50",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An animal with such excessive sagging."
      ],
      "id": "en-swayback-en-noun-462wwjRx",
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "translations": [
    {
      "_dis1": "0 0",
      "code": "fi",
      "lang": "Finnish",
      "sense": "which sense??",
      "word": "notkoselkä"
    },
    {
      "_dis1": "0 0",
      "code": "it",
      "lang": "Italian",
      "sense": "which sense??",
      "word": "iperlordosi"
    },
    {
      "_dis1": "0 0",
      "code": "es",
      "lang": "Spanish",
      "sense": "which sense??",
      "tags": [
        "feminine"
      ],
      "word": "hiperlordosis"
    },
    {
      "_dis1": "0 0",
      "code": "sv",
      "lang": "Swedish",
      "sense": "which sense??",
      "tags": [
        "common-gender"
      ],
      "word": "svankrygg"
    }
  ],
  "word": "swayback"
}

{
  "categories": [
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English uncountable nouns"
  ],
  "derived": [
    {
      "word": "swaybacked"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sway",
        "3": "back"
      },
      "expansion": "sway + back",
      "name": "compound"
    }
  ],
  "etymology_text": "sway + back",
  "forms": [
    {
      "form": "swaybacks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "swayback (countable and uncountable, plural swaybacks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "An excessive sagging of the spine of a quadruped animal, especially a horse."
      ],
      "links": [
        [
          "sagging",
          "sagging"
        ],
        [
          "spine",
          "spine"
        ],
        [
          "quadruped",
          "quadruped"
        ],
        [
          "horse",
          "horse"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    },
    {
      "glosses": [
        "An animal with such excessive sagging."
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "which sense??",
      "word": "notkoselkä"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "which sense??",
      "word": "iperlordosi"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "which sense??",
      "tags": [
        "feminine"
      ],
      "word": "hiperlordosis"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "which sense??",
      "tags": [
        "common-gender"
      ],
      "word": "svankrygg"
    }
  ],
  "word": "swayback"
}