"大黄" meaning in Japanese

{
  "forms": [
    {
      "form": "大黄",
      "ruby": [
        [
          "大",
          "だい"
        ],
        [
          "黄",
          "おう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "大黄",
      "ruby": [
        [
          "大黄",
          "ダイオウ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "daiō",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "だいおう",
        "2": "ダイオウ"
      },
      "expansion": "大(だい)黄(おう) or 大黄(ダイオウ) • (daiō)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "0 90 10",
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 94 6",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "66 34",
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "69 31",
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "68 32",
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "92 8",
          "kind": "lifeform",
          "langcode": "ja",
          "name": "Buckwheat family plants",
          "orig": "ja:Buckwheat family plants",
          "parents": [
            "Caryophyllales order plants",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "93 7",
          "kind": "topical",
          "langcode": "ja",
          "name": "Traditional Chinese medicine",
          "orig": "ja:Traditional Chinese medicine",
          "parents": [
            "Alternative medicine",
            "Medicine",
            "Pseudoscience",
            "Biology",
            "Healthcare",
            "Sciences",
            "Health",
            "All topics",
            "Body",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "rhubarb, plants of genus Rheum"
      ],
      "id": "en-大黄-ja-noun-8QeEBdaW",
      "links": [
        [
          "rhubarb",
          "rhubarb"
        ],
        [
          "Rheum",
          "Rheum#Translingual"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "16 84",
          "kind": "other",
          "name": "Japanese terms with 2 kanji",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Synonym of 羊蹄 (gishigishi, “Japanese dock”)"
      ],
      "id": "en-大黄-ja-noun-ODVUYQgc",
      "links": [
        [
          "羊蹄",
          "羊蹄#Japanese"
        ]
      ],
      "synonyms": [
        {
          "extra": "gishigishi, “Japanese dock”",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "羊蹄"
        }
      ]
    }
  ],
  "wikipedia": [
    "ja:ダイオウ属"
  ],
  "word": "大黄"
}

{
  "categories": [
    "Japanese entries with incorrect language header",
    "Japanese lemmas",
    "Japanese links with redundant wikilinks",
    "Japanese nouns",
    "Japanese terms spelled with first grade kanji",
    "Japanese terms spelled with second grade kanji",
    "Japanese terms with 2 kanji",
    "Japanese terms with redundant sortkeys",
    "Pages with 2 entries",
    "Pages with entries",
    "ja:Buckwheat family plants",
    "ja:Traditional Chinese medicine"
  ],
  "forms": [
    {
      "form": "大黄",
      "ruby": [
        [
          "大",
          "だい"
        ],
        [
          "黄",
          "おう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "大黄",
      "ruby": [
        [
          "大黄",
          "ダイオウ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "daiō",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "だいおう",
        "2": "ダイオウ"
      },
      "expansion": "大(だい)黄(おう) or 大黄(ダイオウ) • (daiō)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "rhubarb, plants of genus Rheum"
      ],
      "links": [
        [
          "rhubarb",
          "rhubarb"
        ],
        [
          "Rheum",
          "Rheum#Translingual"
        ]
      ]
    },
    {
      "glosses": [
        "Synonym of 羊蹄 (gishigishi, “Japanese dock”)"
      ],
      "links": [
        [
          "羊蹄",
          "羊蹄#Japanese"
        ]
      ],
      "synonyms": [
        {
          "extra": "gishigishi, “Japanese dock”",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "羊蹄"
        }
      ]
    }
  ],
  "wikipedia": [
    "ja:ダイオウ属"
  ],
  "word": "大黄"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "大黄"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "大黄",
  "trace": ""
}