"carbonium" meaning in English

{
  "forms": [
    {
      "form": "carboniums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "carbonium (plural carboniums)",
      "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",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Carbon",
          "orig": "en:Carbon",
          "parents": [
            "Carbon group elements",
            "Chemical elements",
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ions",
          "orig": "en:Ions",
          "parents": [
            "Chemistry",
            "Electricity",
            "Matter",
            "Sciences",
            "Electromagnetism",
            "Nature",
            "All topics",
            "Physics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "carbonium ion"
        }
      ],
      "glosses": [
        "Any of several organic cations; carbocation or carbenium."
      ],
      "id": "en-carbonium-en-noun-jGOeUMmn",
      "links": [
        [
          "cation",
          "cation"
        ],
        [
          "carbocation",
          "carbocation"
        ],
        [
          "carbenium",
          "carbenium"
        ]
      ],
      "raw_glosses": [
        "(dated, deprecated) Any of several organic cations; carbocation or carbenium."
      ],
      "tags": [
        "dated",
        "proscribed"
      ]
    }
  ],
  "word": "carbonium"
}

{
  "derived": [
    {
      "word": "carbonium ion"
    }
  ],
  "forms": [
    {
      "form": "carboniums",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "carbonium (plural carboniums)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English dated terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "en:Carbon",
        "en:Ions"
      ],
      "glosses": [
        "Any of several organic cations; carbocation or carbenium."
      ],
      "links": [
        [
          "cation",
          "cation"
        ],
        [
          "carbocation",
          "carbocation"
        ],
        [
          "carbenium",
          "carbenium"
        ]
      ],
      "raw_glosses": [
        "(dated, deprecated) Any of several organic cations; carbocation or carbenium."
      ],
      "tags": [
        "dated",
        "proscribed"
      ]
    }
  ],
  "word": "carbonium"
}