"self-opening" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "self-",
        "3": "opening"
      },
      "expansion": "self- + opening",
      "name": "af"
    }
  ],
  "etymology_text": "From self- + opening.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "self-opening (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with self-",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1963 January, “New in Japan: A Vista-car special”, in Modern Railways, page 44",
          "text": "Special features enable the cars to be used as mobile classrooms; equipment includes a microphone and inter-car broadcasting equipment, self-opening doors, fluorescent lights, illuminated speedometer, carton disposal units and a folding bed which normally serves as seats on either side of a table.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "that opens, or is designed to open automatically, or opens of its own accord."
      ],
      "id": "en-self-opening-en-adj-PSGoFYcJ",
      "links": [
        [
          "automatically",
          "automatically"
        ]
      ],
      "qualifier": "Of an object",
      "raw_glosses": [
        "(Of an object) that opens, or is designed to open automatically, or opens of its own accord."
      ],
      "related": [
        {
          "word": "self-closing"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "self-opening"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "self-",
        "3": "opening"
      },
      "expansion": "self- + opening",
      "name": "af"
    }
  ],
  "etymology_text": "From self- + opening.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "self-opening (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "self-closing"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms prefixed with self-",
        "English terms with quotations",
        "English uncomparable adjectives"
      ],
      "examples": [
        {
          "ref": "1963 January, “New in Japan: A Vista-car special”, in Modern Railways, page 44",
          "text": "Special features enable the cars to be used as mobile classrooms; equipment includes a microphone and inter-car broadcasting equipment, self-opening doors, fluorescent lights, illuminated speedometer, carton disposal units and a folding bed which normally serves as seats on either side of a table.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "that opens, or is designed to open automatically, or opens of its own accord."
      ],
      "links": [
        [
          "automatically",
          "automatically"
        ]
      ],
      "qualifier": "Of an object",
      "raw_glosses": [
        "(Of an object) that opens, or is designed to open automatically, or opens of its own accord."
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "self-opening"
}