"stone-horse" meaning in English

{
  "forms": [
    {
      "form": "stone-horses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stone-horse (plural stone-horses)",
      "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"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1700, Timothy Nourse, Campania Foelix, pages 15–16",
          "text": "[…] three things ought always to be kept under: a mastiff dog, a stone horse and a clown; and really I think a snarling, cross-grained clown to be the most unlucky beast of three.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A stallion."
      ],
      "id": "en-stone-horse-en-noun-QyNiFUqv",
      "links": [
        [
          "stallion",
          "stallion"
        ]
      ],
      "raw_glosses": [
        "(obsolete) A stallion."
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "stone-horse"
}

{
  "forms": [
    {
      "form": "stone-horses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "stone-horse (plural stone-horses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with obsolete senses",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1700, Timothy Nourse, Campania Foelix, pages 15–16",
          "text": "[…] three things ought always to be kept under: a mastiff dog, a stone horse and a clown; and really I think a snarling, cross-grained clown to be the most unlucky beast of three.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A stallion."
      ],
      "links": [
        [
          "stallion",
          "stallion"
        ]
      ],
      "raw_glosses": [
        "(obsolete) A stallion."
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "stone-horse"
}