"フッ化" meaning in Japanese

{
  "forms": [
    {
      "form": "フッ化",
      "ruby": [
        [
          "化",
          "か"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "fukka",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "futukwa",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ふつくわ",
      "roman": "futukwa",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "フッか",
        "hhira": "ふつくわ"
      },
      "expansion": "フッ化(か) • (fukka) ^(←ふつくわ (futukwa)?)",
      "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 redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Chemistry",
          "orig": "ja:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "fluoridation"
      ],
      "id": "en-フッ化-ja-noun-iBBwzoQ-",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "fluoridation",
          "fluoridation"
        ]
      ],
      "raw_glosses": [
        "(chemistry) fluoridation"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "フッか"
    },
    {
      "ipa": "[ɸɯ̟ᵝk̚ka̠]"
    }
  ],
  "word": "フッ化"
}

{
  "forms": [
    {
      "form": "フッ化",
      "ruby": [
        [
          "化",
          "か"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "fukka",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "futukwa",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "ふつくわ",
      "roman": "futukwa",
      "tags": [
        "hiragana",
        "historical"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "フッか",
        "hhira": "ふつくわ"
      },
      "expansion": "フッ化(か) • (fukka) ^(←ふつくわ (futukwa)?)",
      "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 third grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with one Han script character",
        "ja:Chemistry"
      ],
      "glosses": [
        "fluoridation"
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "fluoridation",
          "fluoridation"
        ]
      ],
      "raw_glosses": [
        "(chemistry) fluoridation"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "フッか"
    },
    {
      "ipa": "[ɸɯ̟ᵝk̚ka̠]"
    }
  ],
  "word": "フッ化"
}

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

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