"mouche à feu" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "en",
        "3": "firefly",
        "nocap": "1",
        "nocat": "1"
      },
      "expansion": "calque of English firefly",
      "name": "calque"
    }
  ],
  "etymology_text": "Possibly a calque of English firefly, but the evidence is not clear.",
  "forms": [
    {
      "form": "mouches à feu",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "mouche à feu f (plural mouches à feu)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Acadian French",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Cajun French",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Louisiana French",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Quebec French",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "fr",
          "name": "Insects",
          "orig": "fr:Insects",
          "parents": [
            "Arthropods",
            "Animals",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Light sources",
          "orig": "fr:Light sources",
          "parents": [
            "Light",
            "Energy",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "firefly"
      ],
      "id": "en-mouche_à_feu-fr-noun-r6wyfnNp",
      "links": [
        [
          "firefly",
          "firefly"
        ]
      ],
      "qualifier": "Acadia",
      "raw_glosses": [
        "(Louisiana, Cajun, Quebec, Acadia) firefly"
      ],
      "synonyms": [
        {
          "tags": [
            "Louisiana"
          ],
          "word": "mouche de feu"
        }
      ],
      "tags": [
        "Louisiana",
        "Quebec",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/mu.ʃ‿a fø/"
    },
    {
      "audio": "LL-Q150 (fra)-DenisdeShawi-mouche à feu.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cf/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cf/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav.ogg",
      "tags": [
        "Canada"
      ],
      "text": "Audio (CAN)"
    }
  ],
  "word": "mouche à feu"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "fr",
        "2": "en",
        "3": "firefly",
        "nocap": "1",
        "nocat": "1"
      },
      "expansion": "calque of English firefly",
      "name": "calque"
    }
  ],
  "etymology_text": "Possibly a calque of English firefly, but the evidence is not clear.",
  "forms": [
    {
      "form": "mouches à feu",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "mouche à feu f (plural mouches à feu)",
      "name": "fr-noun"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Acadian French",
        "Cajun French",
        "French countable nouns",
        "French entries with incorrect language header",
        "French feminine nouns",
        "French lemmas",
        "French multiword terms",
        "French nouns",
        "French terms with IPA pronunciation",
        "French terms with audio links",
        "Louisiana French",
        "Quebec French",
        "fr:Insects",
        "fr:Light sources"
      ],
      "glosses": [
        "firefly"
      ],
      "links": [
        [
          "firefly",
          "firefly"
        ]
      ],
      "qualifier": "Acadia",
      "raw_glosses": [
        "(Louisiana, Cajun, Quebec, Acadia) firefly"
      ],
      "tags": [
        "Louisiana",
        "Quebec",
        "feminine"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/mu.ʃ‿a fø/"
    },
    {
      "audio": "LL-Q150 (fra)-DenisdeShawi-mouche à feu.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cf/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cf/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav/LL-Q150_%28fra%29-DenisdeShawi-mouche_%C3%A0_feu.wav.ogg",
      "tags": [
        "Canada"
      ],
      "text": "Audio (CAN)"
    }
  ],
  "synonyms": [
    {
      "tags": [
        "Louisiana"
      ],
      "word": "mouche de feu"
    }
  ],
  "word": "mouche à feu"
}