"grey hydrogen" meaning in All languages combined

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      "expansion": "grey hydrogen (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "alt_of": [
        {
          "word": "gray hydrogen"
        }
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          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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      "derived": [
        {
          "word": "grey ammonia"
        }
      ],
      "glosses": [
        "Alternative form of gray hydrogen"
      ],
      "id": "en-grey_hydrogen-en-noun-nk5jrObl",
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          "gray hydrogen",
          "gray hydrogen#English"
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      ],
      "synonyms": [
        {
          "word": "gray hydrogen"
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  "word": "grey hydrogen"
}

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  "derived": [
    {
      "word": "grey ammonia"
    }
  ],
  "head_templates": [
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      "expansion": "grey hydrogen (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "word": "gray hydrogen"
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      "glosses": [
        "Alternative form of gray hydrogen"
      ],
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  "synonyms": [
    {
      "word": "gray hydrogen"
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  "word": "grey hydrogen"
}