"colombium" meaning in English

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      "expansion": "colombium (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "niobium",
          "word": "columbium"
        }
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      "glosses": [
        "Alternative form of columbium (“niobium”)"
      ],
      "id": "en-colombium-en-noun-0ir6Bijd",
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      "raw_glosses": [
        "(rare) Alternative form of columbium (“niobium”)"
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  "word": "colombium"
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      "expansion": "colombium (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "niobium",
          "word": "columbium"
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      "glosses": [
        "Alternative form of columbium (“niobium”)"
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      "raw_glosses": [
        "(rare) Alternative form of columbium (“niobium”)"
      ],
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  "word": "colombium"
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