"steam cracking" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The cracking of petroleum hydrocarbons, at high temperature in the presence of steam, in order to produce ethylene, propylene and other light alkenes"
      ],
      "id": "en-steam_cracking-en-noun-xc1Sy-gV",
      "links": [
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          "organic chemistry",
          "organic chemistry"
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        [
          "cracking",
          "cracking"
        ],
        [
          "petroleum",
          "petroleum"
        ],
        [
          "hydrocarbon",
          "hydrocarbon"
        ],
        [
          "steam",
          "steam"
        ],
        [
          "ethylene",
          "ethylene"
        ],
        [
          "propylene",
          "propylene"
        ],
        [
          "alkene",
          "alkene"
        ]
      ],
      "raw_glosses": [
        "(organic chemistry) The cracking of petroleum hydrocarbons, at high temperature in the presence of steam, in order to produce ethylene, propylene and other light alkenes"
      ],
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        "uncountable"
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        "chemistry",
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      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "cracking in the presence of steam",
          "word": "vapocraquage"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "cracking in the presence of steam",
          "tags": [
            "feminine"
          ],
          "word": "piroscissione a vapore"
        }
      ]
    }
  ],
  "word": "steam cracking"
}

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  "lang_code": "en",
  "pos": "noun",
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        "The cracking of petroleum hydrocarbons, at high temperature in the presence of steam, in order to produce ethylene, propylene and other light alkenes"
      ],
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        [
          "organic chemistry",
          "organic chemistry"
        ],
        [
          "cracking",
          "cracking"
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          "petroleum",
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        [
          "hydrocarbon",
          "hydrocarbon"
        ],
        [
          "steam",
          "steam"
        ],
        [
          "ethylene",
          "ethylene"
        ],
        [
          "propylene",
          "propylene"
        ],
        [
          "alkene",
          "alkene"
        ]
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        "(organic chemistry) The cracking of petroleum hydrocarbons, at high temperature in the presence of steam, in order to produce ethylene, propylene and other light alkenes"
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        "uncountable"
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        "chemistry",
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  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "cracking in the presence of steam",
      "word": "vapocraquage"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "cracking in the presence of steam",
      "tags": [
        "feminine"
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      "word": "piroscissione a vapore"
    }
  ],
  "word": "steam cracking"
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