"tailfirst" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "tail",
        "3": "first"
      },
      "expansion": "tail + first",
      "name": "compound"
    }
  ],
  "etymology_text": "From tail + first.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "tailfirst (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "antonyms": [
        {
          "word": "headfirst"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              208,
              217
            ]
          ],
          "ref": "2013, Robert L. Ridgway, The Truth About Dog and Cat Treatments and Anomalies, page 205:",
          "text": "This change occurs during the first stage of parturition, and the orientation changes where 60–70 percent of the puppies are born headfirst. Changes in orientation leave about 30–40 percent are ^([sic]) born tailfirst.",
          "type": "quote"
        }
      ],
      "glosses": [
        "With the tail in front."
      ],
      "id": "en-tailfirst-en-adv-~CfcUWth",
      "links": [
        [
          "tail",
          "tail"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "tailfirst"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "tail",
        "3": "first"
      },
      "expansion": "tail + first",
      "name": "compound"
    }
  ],
  "etymology_text": "From tail + first.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "tailfirst (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "antonyms": [
        {
          "word": "headfirst"
        }
      ],
      "categories": [
        "English adverbs",
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms with quotations",
        "English uncomparable adverbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              208,
              217
            ]
          ],
          "ref": "2013, Robert L. Ridgway, The Truth About Dog and Cat Treatments and Anomalies, page 205:",
          "text": "This change occurs during the first stage of parturition, and the orientation changes where 60–70 percent of the puppies are born headfirst. Changes in orientation leave about 30–40 percent are ^([sic]) born tailfirst.",
          "type": "quote"
        }
      ],
      "glosses": [
        "With the tail in front."
      ],
      "links": [
        [
          "tail",
          "tail"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "tailfirst"
}