"tertiary butyl" meaning in English

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      "args": {
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        "2": "tertiary",
        "3": "butyl"
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      "expansion": "tertiary + butyl",
      "name": "compound"
    }
  ],
  "etymology_text": "From tertiary + butyl.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "tertiary butyl (uncountable)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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      ],
      "coordinate_terms": [
        {
          "word": "secondary butyl"
        },
        {
          "word": "sec-butyl"
        },
        {
          "word": "secbutyl"
        },
        {
          "word": "s-butyl"
        },
        {
          "word": "1-methylpropyl"
        },
        {
          "word": "butan-2-yl"
        },
        {
          "word": "normal butyl"
        },
        {
          "word": "n-butyl"
        },
        {
          "word": "primary butyl"
        },
        {
          "word": "butan-1-yl"
        },
        {
          "word": "isobutyl"
        },
        {
          "word": "i-butyl"
        },
        {
          "word": "2-methylpropyl"
        },
        {
          "word": "2-methylpropan-1-yl"
        },
        {
          "word": "cyclobutyl"
        }
      ],
      "glosses": [
        "The univalent organic radical (CH₃)₃C-"
      ],
      "hypernyms": [
        {
          "word": "butyl"
        }
      ],
      "id": "en-tertiary_butyl-en-noun-5vY7Qy3z",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "univalent",
          "univalent"
        ],
        [
          "organic",
          "organic"
        ],
        [
          "radical",
          "radical"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) The univalent organic radical (CH₃)₃C-"
      ],
      "related": [
        {
          "word": "butane"
        }
      ],
      "synonyms": [
        {
          "word": "tert-butyl"
        },
        {
          "word": "tertbutyl"
        },
        {
          "word": "t-butyl"
        },
        {
          "word": "2-methylpropan-2-yl"
        },
        {
          "word": "1,1-dimethylethyl"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "tertiary butyl"
}

{
  "coordinate_terms": [
    {
      "word": "secondary butyl"
    },
    {
      "word": "sec-butyl"
    },
    {
      "word": "secbutyl"
    },
    {
      "word": "s-butyl"
    },
    {
      "word": "1-methylpropyl"
    },
    {
      "word": "butan-2-yl"
    },
    {
      "word": "normal butyl"
    },
    {
      "word": "n-butyl"
    },
    {
      "word": "primary butyl"
    },
    {
      "word": "butan-1-yl"
    },
    {
      "word": "isobutyl"
    },
    {
      "word": "i-butyl"
    },
    {
      "word": "2-methylpropyl"
    },
    {
      "word": "2-methylpropan-1-yl"
    },
    {
      "word": "cyclobutyl"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "tertiary",
        "3": "butyl"
      },
      "expansion": "tertiary + butyl",
      "name": "compound"
    }
  ],
  "etymology_text": "From tertiary + butyl.",
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      "expansion": "tertiary butyl (uncountable)",
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  "hypernyms": [
    {
      "word": "butyl"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "butane"
    }
  ],
  "senses": [
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      "glosses": [
        "The univalent organic radical (CH₃)₃C-"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "univalent",
          "univalent"
        ],
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          "organic",
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        ],
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          "radical",
          "radical"
        ]
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      "raw_glosses": [
        "(organic chemistry) The univalent organic radical (CH₃)₃C-"
      ],
      "tags": [
        "uncountable"
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  ],
  "synonyms": [
    {
      "word": "tert-butyl"
    },
    {
      "word": "tertbutyl"
    },
    {
      "word": "t-butyl"
    },
    {
      "word": "2-methylpropan-2-yl"
    },
    {
      "word": "1,1-dimethylethyl"
    }
  ],
  "word": "tertiary butyl"
}