"double dactyl" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "double",
        "3": "dactyl"
      },
      "expansion": "double + dactyl",
      "name": "compound"
    }
  ],
  "etymology_text": "Coined by poets Anthony Hecht and Paul Pascal; compound of double + dactyl.",
  "forms": [
    {
      "form": "double dactyls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double dactyl (plural double dactyls)",
      "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": "1980, Gyles Brandreth, The Joy of Lex, page 123",
          "text": "Higgledy-piggledies are more sophisticated than clerihews: they comprise double dactyls and rhymes and aren't always biographical.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A short, usually humorous poem with eight lines in dactylic meter; a higgledy-piggledy."
      ],
      "id": "en-double_dactyl-en-noun-bY9DXIKG",
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "poem",
          "poem"
        ],
        [
          "dactylic",
          "dactylic"
        ],
        [
          "meter",
          "meter"
        ],
        [
          "higgledy-piggledy",
          "higgledy-piggledy#Etymology 2"
        ]
      ],
      "synonyms": [
        {
          "word": "higgledy-piggledy"
        },
        {
          "word": "double-dactyl"
        }
      ],
      "wikipedia": [
        "Double dactyl"
      ]
    }
  ],
  "word": "double dactyl"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "double",
        "3": "dactyl"
      },
      "expansion": "double + dactyl",
      "name": "compound"
    }
  ],
  "etymology_text": "Coined by poets Anthony Hecht and Paul Pascal; compound of double + dactyl.",
  "forms": [
    {
      "form": "double dactyls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "double dactyl (plural double dactyls)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1980, Gyles Brandreth, The Joy of Lex, page 123",
          "text": "Higgledy-piggledies are more sophisticated than clerihews: they comprise double dactyls and rhymes and aren't always biographical.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A short, usually humorous poem with eight lines in dactylic meter; a higgledy-piggledy."
      ],
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "poem",
          "poem"
        ],
        [
          "dactylic",
          "dactylic"
        ],
        [
          "meter",
          "meter"
        ],
        [
          "higgledy-piggledy",
          "higgledy-piggledy#Etymology 2"
        ]
      ],
      "wikipedia": [
        "Double dactyl"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "higgledy-piggledy"
    },
    {
      "word": "double-dactyl"
    }
  ],
  "word": "double dactyl"
}