"diacetyl" meaning in English

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "diacetylmorphine"
    },
    {
      "_dis1": "0 0",
      "word": "diacetylurea"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "di",
        "3": "acetyl"
      },
      "expansion": "di- + acetyl",
      "name": "prefix"
    }
  ],
  "etymology_text": "di- + acetyl",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "diacetyl (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0",
      "english": "a condition caused by inhaling diacetyl",
      "word": "popcorn lung"
    },
    {
      "_dis1": "0 0",
      "english": "the flavoring derived from diacetyl",
      "word": "artificial butter flavor"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Organic chemistry",
          "orig": "en:Organic chemistry",
          "parents": [
            "Chemistry",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Two acetyl groups in a compound"
      ],
      "id": "en-diacetyl-en-noun-P8IyKJ2K",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "acetyl",
          "acetyl"
        ],
        [
          "compound",
          "compound"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry, in combination) Two acetyl groups in a compound"
      ],
      "tags": [
        "in-compounds",
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Organic compounds",
          "orig": "en:Organic compounds",
          "parents": [
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "38 62",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "39 61",
          "kind": "other",
          "name": "English terms prefixed with di-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Synonym of butanedione"
      ],
      "id": "en-diacetyl-en-noun-rzBU2jJP",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "butanedione",
          "butanedione#English"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) Synonym of butanedione"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "butanedione"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "wikipedia": [
    "en:diacetyl"
  ],
  "word": "diacetyl"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with di-",
    "English uncountable nouns"
  ],
  "derived": [
    {
      "word": "diacetylmorphine"
    },
    {
      "word": "diacetylurea"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "di",
        "3": "acetyl"
      },
      "expansion": "di- + acetyl",
      "name": "prefix"
    }
  ],
  "etymology_text": "di- + acetyl",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "diacetyl (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "english": "a condition caused by inhaling diacetyl",
      "word": "popcorn lung"
    },
    {
      "english": "the flavoring derived from diacetyl",
      "word": "artificial butter flavor"
    }
  ],
  "senses": [
    {
      "categories": [
        "en:Organic chemistry"
      ],
      "glosses": [
        "Two acetyl groups in a compound"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "acetyl",
          "acetyl"
        ],
        [
          "compound",
          "compound"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry, in combination) Two acetyl groups in a compound"
      ],
      "tags": [
        "in-compounds",
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    },
    {
      "categories": [
        "en:Organic compounds"
      ],
      "glosses": [
        "Synonym of butanedione"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "butanedione",
          "butanedione#English"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) Synonym of butanedione"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "butanedione"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "wikipedia": [
    "en:diacetyl"
  ],
  "word": "diacetyl"
}