"metallocarbene" meaning in English

{
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    {
      "args": {
        "1": "en",
        "2": "metallo",
        "3": "carbene"
      },
      "expansion": "metallo- + carbene",
      "name": "prefix"
    }
  ],
  "etymology_text": "metallo- + carbene",
  "forms": [
    {
      "form": "metallocarbenes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "metallocarbene (plural metallocarbenes)",
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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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          "name": "English terms prefixed with metallo-",
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          "name": "Chemistry",
          "orig": "en:Chemistry",
          "parents": [
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      ],
      "glosses": [
        "A complex containing a metal ion M replacing one or both substituents at the divalent carbon atom of a carbene: (L)M–C–R"
      ],
      "id": "en-metallocarbene-en-noun-vw3kJqk6",
      "links": [
        [
          "chemistry",
          "chemistry"
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          "complex",
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        ],
        [
          "metal",
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        ],
        [
          "carbene",
          "carbene"
        ]
      ],
      "raw_glosses": [
        "(chemistry) A complex containing a metal ion M replacing one or both substituents at the divalent carbon atom of a carbene: (L)M–C–R"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "Transition metal carbene complex"
      ]
    }
  ],
  "word": "metallocarbene"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "metallo",
        "3": "carbene"
      },
      "expansion": "metallo- + carbene",
      "name": "prefix"
    }
  ],
  "etymology_text": "metallo- + carbene",
  "forms": [
    {
      "form": "metallocarbenes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "metallocarbene (plural metallocarbenes)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English entries with incorrect language header",
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      ],
      "glosses": [
        "A complex containing a metal ion M replacing one or both substituents at the divalent carbon atom of a carbene: (L)M–C–R"
      ],
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          "chemistry",
          "chemistry"
        ],
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      "raw_glosses": [
        "(chemistry) A complex containing a metal ion M replacing one or both substituents at the divalent carbon atom of a carbene: (L)M–C–R"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "Transition metal carbene complex"
      ]
    }
  ],
  "word": "metallocarbene"
}