"coronium" meaning in English

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  "etymology_text": "From corona + -ium, coined by a certain A. Gruenwald.",
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  "lang_code": "en",
  "pos": "noun",
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          "name": "Sun",
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          "name": "Supposed chemical elements",
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        }
      ],
      "coordinate_terms": [
        {
          "word": "geocoronium"
        },
        {
          "word": "nebulium"
        }
      ],
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        "A supposed chemical element, hypothesized in the 19th century in order to explain a green emission line seen during the total solar eclipse of 7 August 1869 (actually highly ionized iron)."
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        "(historical) A supposed chemical element, hypothesized in the 19th century in order to explain a green emission line seen during the total solar eclipse of 7 August 1869 (actually highly ionized iron)."
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        "uncountable"
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  "word": "coronium"
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      "word": "geocoronium"
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      "word": "nebulium"
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  "lang_code": "en",
  "pos": "noun",
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          "chemical element"
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        "(historical) A supposed chemical element, hypothesized in the 19th century in order to explain a green emission line seen during the total solar eclipse of 7 August 1869 (actually highly ionized iron)."
      ],
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        "historical",
        "uncountable"
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