"幹細胞" meaning in Japanese

{
  "forms": [
    {
      "form": "幹細胞",
      "ruby": [
        [
          "幹",
          "かん"
        ],
        [
          "細",
          "さい"
        ],
        [
          "胞",
          "ぼう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kansaibō",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kansaibau",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かんさいばう",
      "roman": "kansaibau",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "かんさいぼう",
        "hhira": "かんさいばう"
      },
      "expansion": "幹(かん)細(さい)胞(ぼう) • (kansaibō) ^(←かんさいばう (kansaibau)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant alt parameters",
          "parents": [
            "Links with redundant alt parameters",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with 3 kanji",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with multiple readings",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Cytology",
          "orig": "ja:Cytology",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "stem cell"
      ],
      "id": "en-幹細胞-ja-noun-45jjJ~6p",
      "links": [
        [
          "stem cell",
          "stem cell"
        ]
      ],
      "wikipedia": [
        "ja:幹細胞"
      ]
    }
  ],
  "sounds": [
    {
      "other": "かんさいぼー"
    },
    {
      "ipa": "[kã̠ɰ̃sa̠ibo̞ː]"
    }
  ],
  "word": "幹細胞"
}

{
  "forms": [
    {
      "form": "幹細胞",
      "ruby": [
        [
          "幹",
          "かん"
        ],
        [
          "細",
          "さい"
        ],
        [
          "胞",
          "ぼう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "kansaibō",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "kansaibau",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "かんさいばう",
      "roman": "kansaibau",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "かんさいぼう",
        "hhira": "かんさいばう"
      },
      "expansion": "幹(かん)細(さい)胞(ぼう) • (kansaibō) ^(←かんさいばう (kansaibau)?)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant alt parameters",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with fifth grade kanji",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with secondary school kanji",
        "Japanese terms with 3 kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with multiple readings",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Pages with 2 entries",
        "Pages with entries",
        "ja:Cytology"
      ],
      "glosses": [
        "stem cell"
      ],
      "links": [
        [
          "stem cell",
          "stem cell"
        ]
      ],
      "wikipedia": [
        "ja:幹細胞"
      ]
    }
  ],
  "sounds": [
    {
      "other": "かんさいぼー"
    },
    {
      "ipa": "[kã̠ɰ̃sa̠ibo̞ː]"
    }
  ],
  "word": "幹細胞"
}

{
  "called_from": "parser/304",
  "msg": "HTML tag <span> not properly closed",
  "path": [
    "幹細胞"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "幹細胞",
  "trace": "started on line 2, detected on line 2"
}

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