"dehydrocyclisation" meaning in English

{
  "forms": [
    {
      "form": "dehydrocyclisations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "dehydrocyclisation (usually uncountable, plural dehydrocyclisations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "dehydrocyclization"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
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          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Organic chemistry",
          "orig": "en:Organic chemistry",
          "parents": [
            "Chemistry",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative spelling of dehydrocyclization"
      ],
      "id": "en-dehydrocyclisation-en-noun--wg4wxFR",
      "links": [
        [
          "dehydrocyclization",
          "dehydrocyclization#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "uncountable",
        "usually"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-eɪʃən"
    }
  ],
  "word": "dehydrocyclisation"
}

{
  "forms": [
    {
      "form": "dehydrocyclisations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-",
        "2": "s"
      },
      "expansion": "dehydrocyclisation (usually uncountable, plural dehydrocyclisations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "dehydrocyclization"
        }
      ],
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        "English countable nouns",
        "English entries with incorrect language header",
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        "English lemmas",
        "English nouns",
        "English uncountable nouns",
        "Rhymes:English/eɪʃən",
        "Rhymes:English/eɪʃən/7 syllables",
        "en:Organic chemistry"
      ],
      "glosses": [
        "Alternative spelling of dehydrocyclization"
      ],
      "links": [
        [
          "dehydrocyclization",
          "dehydrocyclization#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "uncountable",
        "usually"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-eɪʃən"
    }
  ],
  "word": "dehydrocyclisation"
}