"identical twin" meaning in English

{
  "etymology_text": "identical (“indistinguishable”) + twin (“sibling with whom one has shared the uterus of the mother”)",
  "forms": [
    {
      "form": "identical twins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "identical twin (plural identical twins)",
      "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"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Danish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Esperanto translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Indonesian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Malay translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Swedish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Ukrainian translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Family members",
          "orig": "en:Family members",
          "parents": [
            "Family",
            "People",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Siblings",
          "orig": "en:Siblings",
          "parents": [
            "Family members",
            "Family",
            "People",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Stock characters",
          "orig": "en:Stock characters",
          "parents": [
            "Fictional characters",
            "Fiction",
            "Artistic works",
            "Art",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "One of exactly two siblings produced from the splitting of a single zygote."
      ],
      "id": "en-identical_twin-en-noun-3hxxtr2U",
      "links": [
        [
          "sibling",
          "sibling"
        ],
        [
          "zygote",
          "zygote"
        ]
      ],
      "related": [
        {
          "word": "semi-identical"
        }
      ],
      "synonyms": [
        {
          "word": "monozygotic twin"
        }
      ],
      "translations": [
        {
          "code": "da",
          "lang": "Danish",
          "sense": "sibling",
          "tags": [
            "common-gender"
          ],
          "word": "enægget tvilling"
        },
        {
          "code": "eo",
          "lang": "Esperanto",
          "sense": "sibling",
          "word": "unuovola ĝemelo"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "sibling",
          "word": "identtinen kaksonen"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "sibling",
          "tags": [
            "masculine"
          ],
          "word": "eineiiger Zwilling"
        },
        {
          "code": "id",
          "lang": "Indonesian",
          "sense": "sibling",
          "word": "kembar identik"
        },
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "ichiranseisōseiji",
          "sense": "sibling",
          "word": "一卵性双生児"
        },
        {
          "code": "ms",
          "lang": "Malay",
          "sense": "sibling",
          "word": "kembar seiras"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "sibling",
          "tags": [
            "common-gender"
          ],
          "word": "enäggstvilling"
        },
        {
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "odnojajcévyj blyznjúk",
          "sense": "sibling",
          "tags": [
            "masculine"
          ],
          "word": "однояйце́вий близню́к"
        },
        {
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "odnojajcéva blyznjúčka",
          "sense": "sibling",
          "tags": [
            "feminine"
          ],
          "word": "однояйце́ва близню́чка"
        },
        {
          "code": "uk",
          "lang": "Ukrainian",
          "roman": "odnojajcévi blyznjáta",
          "sense": "sibling",
          "tags": [
            "neuter",
            "plural"
          ],
          "word": "однояйце́ві близня́та"
        }
      ],
      "wikipedia": [
        "identical twin"
      ]
    }
  ],
  "word": "identical twin"
}

{
  "etymology_text": "identical (“indistinguishable”) + twin (“sibling with whom one has shared the uterus of the mother”)",
  "forms": [
    {
      "form": "identical twins",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "identical twin (plural identical twins)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "semi-identical"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Danish translations",
        "Terms with Esperanto translations",
        "Terms with Finnish translations",
        "Terms with German translations",
        "Terms with Indonesian translations",
        "Terms with Japanese translations",
        "Terms with Malay translations",
        "Terms with Swedish translations",
        "Terms with Ukrainian translations",
        "en:Family members",
        "en:Siblings",
        "en:Stock characters"
      ],
      "glosses": [
        "One of exactly two siblings produced from the splitting of a single zygote."
      ],
      "links": [
        [
          "sibling",
          "sibling"
        ],
        [
          "zygote",
          "zygote"
        ]
      ],
      "wikipedia": [
        "identical twin"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "monozygotic twin"
    }
  ],
  "translations": [
    {
      "code": "da",
      "lang": "Danish",
      "sense": "sibling",
      "tags": [
        "common-gender"
      ],
      "word": "enægget tvilling"
    },
    {
      "code": "eo",
      "lang": "Esperanto",
      "sense": "sibling",
      "word": "unuovola ĝemelo"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "sibling",
      "word": "identtinen kaksonen"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "sibling",
      "tags": [
        "masculine"
      ],
      "word": "eineiiger Zwilling"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "sibling",
      "word": "kembar identik"
    },
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "ichiranseisōseiji",
      "sense": "sibling",
      "word": "一卵性双生児"
    },
    {
      "code": "ms",
      "lang": "Malay",
      "sense": "sibling",
      "word": "kembar seiras"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "sibling",
      "tags": [
        "common-gender"
      ],
      "word": "enäggstvilling"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "odnojajcévyj blyznjúk",
      "sense": "sibling",
      "tags": [
        "masculine"
      ],
      "word": "однояйце́вий близню́к"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "odnojajcéva blyznjúčka",
      "sense": "sibling",
      "tags": [
        "feminine"
      ],
      "word": "однояйце́ва близню́чка"
    },
    {
      "code": "uk",
      "lang": "Ukrainian",
      "roman": "odnojajcévi blyznjáta",
      "sense": "sibling",
      "tags": [
        "neuter",
        "plural"
      ],
      "word": "однояйце́ві близня́та"
    }
  ],
  "word": "identical twin"
}