"natural son" meaning in English

{
  "forms": [
    {
      "form": "natural sons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "natural son (plural natural sons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "83 17",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "89 11",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "93 7",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "94 6",
          "kind": "topical",
          "langcode": "en",
          "name": "Male family members",
          "orig": "en:Male family members",
          "parents": [
            "Family members",
            "Male people",
            "Family",
            "Male",
            "People",
            "Gender",
            "Human",
            "Biology",
            "Psychology",
            "Sociology",
            "All topics",
            "Sciences",
            "Social sciences",
            "Fundamental",
            "Society"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "They have two children: a natural son and an adopted daughter."
        }
      ],
      "glosses": [
        "A male biological offspring, whether legitimate or illegitimate, as opposed to one adopted."
      ],
      "id": "en-natural_son-en-noun-xjkudnVU",
      "links": [
        [
          "male",
          "male"
        ],
        [
          "biological",
          "biological"
        ],
        [
          "legitimate",
          "legitimate"
        ],
        [
          "illegitimate",
          "illegitimate"
        ]
      ]
    },
    {
      "glosses": [
        "An illegitimate son."
      ],
      "id": "en-natural_son-en-noun-kFwY~oj7",
      "links": [
        [
          "illegitimate",
          "illegitimate"
        ]
      ],
      "related": [
        {
          "_dis1": "24 76",
          "word": "biological child"
        },
        {
          "_dis1": "24 76",
          "word": "adopted child"
        },
        {
          "_dis1": "24 76",
          "word": "legitimate child"
        },
        {
          "_dis1": "24 76",
          "word": "illegitimate child"
        },
        {
          "_dis1": "24 76",
          "word": "love child"
        },
        {
          "_dis1": "24 76",
          "word": "natural daughter"
        },
        {
          "_dis1": "24 76",
          "word": "natural child"
        }
      ]
    }
  ],
  "word": "natural son"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Male family members"
  ],
  "forms": [
    {
      "form": "natural sons",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "natural son (plural natural sons)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "biological child"
    },
    {
      "word": "adopted child"
    },
    {
      "word": "legitimate child"
    },
    {
      "word": "illegitimate child"
    },
    {
      "word": "love child"
    },
    {
      "word": "natural daughter"
    },
    {
      "word": "natural child"
    }
  ],
  "senses": [
    {
      "examples": [
        {
          "text": "They have two children: a natural son and an adopted daughter."
        }
      ],
      "glosses": [
        "A male biological offspring, whether legitimate or illegitimate, as opposed to one adopted."
      ],
      "links": [
        [
          "male",
          "male"
        ],
        [
          "biological",
          "biological"
        ],
        [
          "legitimate",
          "legitimate"
        ],
        [
          "illegitimate",
          "illegitimate"
        ]
      ]
    },
    {
      "glosses": [
        "An illegitimate son."
      ],
      "links": [
        [
          "illegitimate",
          "illegitimate"
        ]
      ]
    }
  ],
  "word": "natural son"
}