"ethylaluminium" meaning in English

{
  "head_templates": [
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      "args": {
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      "expansion": "ethylaluminium (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Organic chemistry",
          "orig": "en:Organic chemistry",
          "parents": [
            "Chemistry",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An ethyl derivative of an aluminium atom or cation"
      ],
      "id": "en-ethylaluminium-en-noun-RQsArUQS",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "ethyl",
          "ethyl"
        ],
        [
          "aluminium",
          "aluminium"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry, in combination) An ethyl derivative of an aluminium atom or cation"
      ],
      "tags": [
        "in-compounds",
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "it",
          "lang": "Italian",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "etilalluminio"
        }
      ]
    }
  ],
  "word": "ethylaluminium"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "ethylaluminium (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English entries with incorrect language header",
        "English lemmas",
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        "English uncountable nouns",
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      ],
      "glosses": [
        "An ethyl derivative of an aluminium atom or cation"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "ethyl",
          "ethyl"
        ],
        [
          "aluminium",
          "aluminium"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry, in combination) An ethyl derivative of an aluminium atom or cation"
      ],
      "tags": [
        "in-compounds",
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "etilalluminio"
    }
  ],
  "word": "ethylaluminium"
}