"DMFu" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Lemmes en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Sigles en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "(Sigle) Abréviation de Diméthylfumarate."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de la chimie",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonyme de diméthylfumarate."
      ],
      "id": "fr-DMFu-fr-noun-I3q-PIja",
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\de.ɛm.ɛf.y\\"
    }
  ],
  "synonyms": [
    {
      "word": "fumarate de diméthyle"
    }
  ],
  "tags": [
    "invariable",
    "masculine"
  ],
  "word": "DMFu"
}

{
  "categories": [
    "Lemmes en français",
    "Noms communs en français",
    "Sigles en français",
    "français"
  ],
  "etymology_texts": [
    "(Sigle) Abréviation de Diméthylfumarate."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Nom commun",
  "senses": [
    {
      "categories": [
        "Lexique en français de la chimie"
      ],
      "glosses": [
        "Synonyme de diméthylfumarate."
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\de.ɛm.ɛf.y\\"
    }
  ],
  "synonyms": [
    {
      "word": "fumarate de diméthyle"
    }
  ],
  "tags": [
    "invariable",
    "masculine"
  ],
  "word": "DMFu"
}