"butylene glycol" meaning in English

{
  "forms": [
    {
      "form": "butylene glycols",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butylene glycol (plural butylene glycols)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
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          "name": "Pages with entries",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Organic compounds",
          "orig": "en:Organic compounds",
          "parents": [
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            "Chemistry",
            "Nature",
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          "source": "w"
        }
      ],
      "glosses": [
        "Any of several isomeric glycols formally derived from butane"
      ],
      "id": "en-butylene_glycol-en-noun-1CjdqK1N",
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "glycol",
          "glycol"
        ],
        [
          "butane",
          "butane"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) Any of several isomeric glycols formally derived from butane"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "butylene glycol"
}

{
  "forms": [
    {
      "form": "butylene glycols",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "butylene glycol (plural butylene glycols)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
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        "Pages with entries",
        "en:Organic compounds"
      ],
      "glosses": [
        "Any of several isomeric glycols formally derived from butane"
      ],
      "links": [
        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "glycol",
          "glycol"
        ],
        [
          "butane",
          "butane"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) Any of several isomeric glycols formally derived from butane"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "organic-chemistry",
        "physical-sciences"
      ]
    }
  ],
  "word": "butylene glycol"
}